Holley

Unterminated Universal Main Harness for HP EFI & Dominator EFI

Do you need to upgrade your ignition system due to a recent Sniper EFI installation, but have no idea which option is best? Introducing HyperSpark Ignition, from Sniper EFI. The complete system...

Do you need to upgrade your ignition system due to a recent Sniper EFI installation, but have no idea which option is best? Introducing HyperSpark Ignition, from Sniper EFI. The complete system...

For use in forced induction applications up to 88.4PSI   7 Bar Map Sensor, 1/8-27 NPT Features: Stainless steel construction Comes with mating connector for custom configurations Linear voltage...

Every racer around is well aware that the crank sensor is an integral part of the fuel injection system. Holley's EFI Crankshaft Signal Sensor is designed to generate an RPM input signal to the ECU...

P/N 554-118 is designed as a drop-in sensor replacement for flying magnet crank trigger setups using a 3/4-16" threaded magnetic sensor. This sensor is a Hall Effect sensor, meaning it outputs a...

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness...

Holley's new 6.86" Pro Dash delivers over 200 monitoring channels of reliable real-time data in a more compact, full HD package suitable for nearly any motorsports application. Be assured that the...

Trust. Whether it's your engine builder, team members, or EFI System, trust is earned, not given. When your expensive engine, sponsorship and reputation are on the line, trust your engine monitoring...

GM LS 24x Crank, 1x Cam - LS1/LS6 Engines - 4L60E/4L80E Transmission Control, No Laptop Required, 3.5" Touchscreen Included Take control of your LS engine with Terminator X Max! Don't settle for a...

TERMINATOR X STEALTH 4150, BLACK The Terminator X Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced...

HOLLEY EFI STANDALONE AIR/FUEL WIDEBAND 02 GAUGE KIT Standard 2-1/16" Wideband A/F Gauge, 8.5-18, Black Face. Includes gauge, wiring harness, and Bosch LSU 4.9 wideband O2 sensor. Holley EFI fully...