Quick view Holley 14" CHROME ROUND AIR CLEANER KIT MSRP: Now: $61.12 Add to Cart Compare Quick view Holley GM 58X EFI HARNESS KIT MSRP: Now: $699.95 Add to Cart Compare Quick view Holley SEALED USB DATA CABLE MSRP: Now: $65.35 Add to Cart Compare Quick view Holley DOMINATOR EFI AUXILIARY HARNESS MSRP: Now: $195.95 Add to Cart Compare Quick view Holley 1/4" EGT PROBE, OPEN TIP MSRP: Now: $89.95 Add to Cart Compare Quick view Holley HOLLEY EFI 2 AXIS G-METER MSRP: Now: $342.95 Add to Cart Compare Quick view Holley HOLLEY EFI 8 CHANNEL CAN EGT KIT MSRP: Now: $1,299.95 Add to Cart Compare Quick view Holley J1B CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley GM 58X EFI HARNESS KIT MSRP: Now: $699.95 Add to Cart Compare Quick view Holley SEALED USB DATA CABLE MSRP: Now: $65.35 Add to Cart Compare Quick view Holley DOMINATOR EFI AUXILIARY HARNESS MSRP: Now: $195.95 Add to Cart Compare Quick view Holley 1/4" EGT PROBE, OPEN TIP MSRP: Now: $89.95 Add to Cart Compare Quick view Holley HOLLEY EFI 2 AXIS G-METER MSRP: Now: $342.95 Add to Cart Compare Quick view Holley HOLLEY EFI 8 CHANNEL CAN EGT KIT MSRP: Now: $1,299.95 Add to Cart Compare Quick view Holley J1B CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley SEALED USB DATA CABLE MSRP: Now: $65.35 Add to Cart Compare Quick view Holley DOMINATOR EFI AUXILIARY HARNESS MSRP: Now: $195.95 Add to Cart Compare Quick view Holley 1/4" EGT PROBE, OPEN TIP MSRP: Now: $89.95 Add to Cart Compare Quick view Holley HOLLEY EFI 2 AXIS G-METER MSRP: Now: $342.95 Add to Cart Compare Quick view Holley HOLLEY EFI 8 CHANNEL CAN EGT KIT MSRP: Now: $1,299.95 Add to Cart Compare Quick view Holley J1B CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley DOMINATOR EFI AUXILIARY HARNESS MSRP: Now: $195.95 Add to Cart Compare Quick view Holley 1/4" EGT PROBE, OPEN TIP MSRP: Now: $89.95 Add to Cart Compare Quick view Holley HOLLEY EFI 2 AXIS G-METER MSRP: Now: $342.95 Add to Cart Compare Quick view Holley HOLLEY EFI 8 CHANNEL CAN EGT KIT MSRP: Now: $1,299.95 Add to Cart Compare Quick view Holley J1B CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley 1/4" EGT PROBE, OPEN TIP MSRP: Now: $89.95 Add to Cart Compare Quick view Holley HOLLEY EFI 2 AXIS G-METER MSRP: Now: $342.95 Add to Cart Compare Quick view Holley HOLLEY EFI 8 CHANNEL CAN EGT KIT MSRP: Now: $1,299.95 Add to Cart Compare Quick view Holley J1B CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley HOLLEY EFI 2 AXIS G-METER MSRP: Now: $342.95 Add to Cart Compare Quick view Holley HOLLEY EFI 8 CHANNEL CAN EGT KIT MSRP: Now: $1,299.95 Add to Cart Compare Quick view Holley J1B CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley HOLLEY EFI 8 CHANNEL CAN EGT KIT MSRP: Now: $1,299.95 Add to Cart Compare Quick view Holley J1B CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley J1B CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley J1A CONNECTOR MSRP: Now: $35.36 Add to Cart Compare Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley GM LS 58X EFI HARNESS KIT MSRP: Now: $726.95 Add to Cart Compare Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. MSRP: Now: $77.48 Add to Cart Compare Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view Holley HP SMART COIL HARNESS MSRP: Now: $186.95 Add to Cart Compare Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view 14" CHROME ROUND AIR CLEANER KIT Dress up your engine with Holley's 14" Chrome Plated Round Air Cleaner Assembly. Features: Triple Chrome Plated Housings Traditional Look Open Element Style Low Restriction Paper Filter MSRP: Now: $61.12 Add to Cart Compare Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view GM 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $699.95 Add to Cart Compare Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view SEALED USB DATA CABLE 7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU. MSRP: Now: $65.35 Add to Cart Compare Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view DOMINATOR EFI AUXILIARY HARNESS Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with... MSRP: Now: $195.95 Add to Cart Compare Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view 1/4" EGT PROBE, OPEN TIP Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. MSRP: Now: $89.95 Add to Cart Compare Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view HOLLEY EFI 2 AXIS G-METER Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial... MSRP: Now: $342.95 Add to Cart Compare Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view HOLLEY EFI 8 CHANNEL CAN EGT KIT Introducing the Holley EFI 8 Channel CANBus EGT Kit. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature of each... MSRP: Now: $1,299.95 Add to Cart Compare Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view J1B CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view J1A CONNECTOR Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or... MSRP: Now: $35.36 Add to Cart Compare Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view GM LS 58X EFI HARNESS KIT An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes... MSRP: Now: $726.95 Add to Cart Compare Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS. This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR... MSRP: Now: $77.48 Add to Cart Compare Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected ×
Quick view HP SMART COIL HARNESS HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart... MSRP: Now: $186.95 Add to Cart Compare 1 2 3 4 5 6 Compare Selected