Holley

Holley Terminator X Max EFI 550-931 for LS2, LS3 and 2007-2013 Truck/SUV 4.8L 5.3L 6.0L 6.2L Engines - 58x LS with EV6 Injectors, Drive By Wire Throttle, 3.5" Screen Included (No Transmission Harness)

Holley 550-931 Terminator X Max Engine Management System Commonly used for LS2, LS3 and 2007-2013 Truck 4.8L 5.3L 6.0L 6.2L Engines with EV6 Injectors, Electronic Throttle Body, and 700R4, TH400,...

Holley Terminator X Max EFI 550-917 for 1999-2006 LS Truck 4.8L 5.3L 6.0L Engines - 24x LS with Multec 2 Injectors, 4L60/4L80 Trans, 3.5" Screen Included - No DBW Control - LM7 LQ4 LQ9 LR4 L33

Holley 550-917 Terminator X Max Engine Management System Commonly used for 1999-2006 Truck/SUV 4.8L 5.3L 6.0L Engines with stock Multec Injectors, Cable Throttle, and 4L60 or 4L80 Transmission 24x...

Holley Terminator X Max EFI 550-927 for 1999-2006 LS Truck 4.8L 5.3L 6.0L Engines - 24x LS with Multec 2 Injectors, 8-Pin DBW Harness, 4L60/4L80 Trans, 3.5" Screen Included - LM7 LQ4 LQ9 LR4 L33

Holley 550-927 Terminator X Max Engine Management System Commonly used for 1999-2006 Truck/SUV 4.8L 5.3L 6.0L Engines with stock Multec Injectors, Electronic Throttle (8 Pin Pedal and Throttle...

Holley 558-443 CAN to USB Cable for Terminator X, Dominator, HP and Sniper 1 EFI Systems

Holley CAN to USB Adapter Cable 558-443 CAN Bus to USB-A Tuning Cable for Holley EFI Systems The Holley 558-443 CAN to USB Adapter Cable allows direct communication between your Holley EFI system...

Holley Main Power Harness for Dominator, HP and Terminator X EFI 558-308

Holley EFI 558-308 Main Power Harness Works with Dominator, HP and Terminator X ECU's This Power Harness is required with HP or Dominator ECUs, and is also the correct replacement for Terminator X...

Holley 558-483 Terminator X Bluetooth Module

Holley Bluetooth Module for Terminator X EFI 558-483 For use within the USA and Canada only. Unlock the full potential of your Terminator X EFI system with the Terminator X EFI Bluetooth Module -...

Holley 558-465 CAN Splitter Harness for Terminator X, Dominator, HP and Sniper EFI

Holley 558-465 EFI CAN Splitter Harness Compatible with Dominator, HP, Terminator X and Sniper 1 EFI Systems The Holley EFI CAN splitter allows you to add an additional CAN device to your HP,...

Holley 558-200 EV1 Fuel Injector Harness for LS SBC BBC GM & Chrysler V8 Engines Jetronic

Holley EV1 Fuel Injector Harness 558-200 For LS, Small Block and Big Block Chevrolet Engines and Chrysler V8. This EV1 (also known as Jetronic) Injector harness is compatible with the main...

Holley 558-201 EV6 Fuel Injector Harness for LS SBC BBC GM & Chrysler V8 Engines USCAR

Holley EV6 Fuel Injector Harness 558-201 For LS, Small Block and Big Block Chevrolet Engines and Chrysler V8. This EV6 (also known as USCAR) Injector harness is compatible with the main harnesses...

Holley 558-214 Multec 2 Fuel Injector Harness for 1999-2006 LS Truck & SUV 4.8L 5.3L 6.0L Multec

Holley Multec 2 Fuel Injector Harness 558-214 For use with Multec 2 Injectors, used on many 1999-2006 GM Truck/SUV 4.8L 5.3L 6.0L Engines. This Multec 2 (also known as Delphi or Multec) Injector...

Holley 558-321 Coil Harness Pair for LS Engines 4.8L 5.3L 6.0L 6.2L 7.0L

Holley 558-321 LS Coil Harness Pair Fits all LS Based 4.8L 5.3L 6.0L 6.2L 7.0L Engines Except LS1 and LS6 Are you tired of scouring the junkyard for stock ls coil sub harnesses? Introducing...

Holley 558-416 LS1 Harness to LS3 MAP Sensor Adapter

Holley 558-416 MAP Sensor Adapter Harness Adapts LS1/LS2 and Early LS Truck Harness to LS3/LS9/Late LS Truck MAP Sensor. Holley EFI LS main harnesses have a MAP sensor connecter designed for use...

Holley 558-406 GM LS Drive-By-Wire Harness for 6-Pin Throttle Body and Pedal 2005+ Car 2007+ Truck/SUV 4.8L 5.3L 6.0L 6.2L

Holley 558-406 GM LS Drive-By-Wire DBW Throttle Harness For use with Dominator and Terminator X Max EFI Systems. Fits 6-Pin Throttle Body and 6-Pin Pedal found in 2005-2013 Car and 2007-2013...

Holley J4 Auxiliary Harness for Dominator EFI 558-404

Holley J4 Auxiliary Harness for Dominator EFI 558-404 Holley part number 558-404 includes a J4 connector for Dominator ECU, along with 26 generous length wires with ECU terminal pins pre-crimped...

Holley J3 Auxiliary Harness for Dominator EFI 558-403

Holley J3 Auxiliary Harness for Dominator EFI 558-403 Holley part number 558-403 includes a J3 connector for Dominator ECU, along with generous length wires with ECU terminal pins pre-crimped onto...

Holley J2B Auxiliary Output Harness for Dominator EFI 558-402

Holley J2B Auxiliary Harness for Dominator EFI 558-402 Holley part number 558-402 includes a J2B connector for Dominator ECU, along with generous length wires with ECU terminal pins pre-crimped onto...

Holley J2A Auxiliary Input Harness for Dominator EFI 558-401

Holley J2A Auxiliary Harness for Dominator EFI 558-401 Holley part number 558-401 includes a J2A connector for Dominator ECU, along with generous length wires with ECU terminal pins pre-crimped onto...

Holley 558-400 Auxiliary Input/Output Harness for Terminator X, Dominator and HP EFI Systems

Holley 558-400 Auxiliary Input/Output Harness Compatible with Holley Terminator X, HP or Dominator EFI systems. This unterminated harness connects to the (8) pin Metri-Pack Input/Output connector...