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Holley

Holley 558-459 Terminator Stealth 2x4 Primary Throttle Body Sub Harness

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$335.23

Service Primary Throttle Body Sub Harness for Terminator Stealth 4150 Specifications: Description_DEF Electronic Throttle Harness Description_DES Terminator Stealth 2x4 Primary Throttle Body Sub Harness...

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Efi-Ford-Gt500-And-3V-Drive-By-Wire-Throttle-Body-Harness

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Holley

Holley 558-461 Efi Ford Gt500 And 3V Drive-By-Wire Throttle Body Harness

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$681.04

Introducing a new Holley EFI DBW Throttle Body wiring harness for the OEM (Original Equipment Manufacturer) Ford Throttle Body commonly found on 2005-2010 Mustang...

Efi-Terminator-X-Wideband-Adapter-Harness

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Holley

Holley 558-463 Efi Terminator X Wideband Adapter Harness

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$94.26

Service harness sensor adapter for Terminator X and X Max ECU only. Specifications: Description_ASC Do not use with HP, Dominator or Sniper EFI systems....

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HOLLEY

HOLLEY 558-463 Adapter Harness Wideband Terminator-X

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$88.10 $0.00

Wiring Harness Adapter - Terminator X - Wideband - Each

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Holley

Holley 558-464 Pro Dash USB Service Harness

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$57.82

Replacement USB Harness for Holley EFI Pro Dashes - 553-111 and 553-112 Specifications: Description_DEF Computer Chip Programmer Input Cable Description_DES Pro Dash USB Service...

-26%

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Holley

Holley 558-465 EFI CAN Splitter

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$88.33 $65.32

The Holley EFI CAN splitter allows you to add an additional CAN device to your Sniper EFI or Terminator X installation, without needing to...

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HOLLEY

HOLLEY 558-465 Wiring Harness - Can Splitter

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$64.79 $0.00

Data Transfer Cable - Holley EFI CAN Splitter - Each

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HOLLEY

HOLLEY 558-466 Wire Harness MPFI to SS MAP Adapter

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$69.00 $0.00

Wiring Harness Adapter - MPDI Map Sensor to Delphi GT Sensor - Each

Delphi-MP-150-To-Gt-(Stainless-Steel)-Map-Adapter-Harness

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Holley

Holley 558-467 Delphi M/P 150 to GT (Stainless Steel) MAP Adapter Harness

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$54.26

These two new MAP sensor adapters from Holley EFI allow you to quickly add a stainless steel MAP sensor to your existing installation. Holley...

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HOLLEY

HOLLEY 558-467 Wire Harness LS to SS Map Adapter

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$58.75 $0.00

Wiring Harness Adapter - Delphi M/P 3 Pin to Delphi GT 3 Pin - GM LS-Series - Each

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Efi-Terminator-X-Dbw-Harness---Gm-Gen-V-Ltx

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Holley

Holley 558-468 Efi Terminator X Dbw Harness - Gm Gen V Ltx

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$416.27

GM GEN V LTx DBW Harness. Compatible with GM part number 12617792 (L83), and 12678223 (L86, LT1, LT4). Specifications: Description_DES Holley EFI Terminator X...

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Ford-4R70w4R75w-Transmission-Control-Harness

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Holley

Holley 558-470 Ford 4R70W/4R75W Transmission Control Harness

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$414.79 $377.59

Ford 4R70W/4R75W Transmission Harness - Complete terminated harness with j4 connector to operate 1998+ Ford electronic transmissions, for Dominator EFI and Terminator X Max...

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HOLLEY

HOLLEY 558-470 Trans Wire Harness Ford 4R70W/4R75W 1998-Up

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$377.96 $0.00

Transmission Wiring Harness - Plug-N-Play - j4 Connector - 4R70W / 4R75W - Ford - Each

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1992-1997-Ford-Aode4R70w-Transmission-Control-Harness

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Holley

Holley 558-471 1992-1997 Ford AODE/4R70W Transmission Control Harness

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$450.13 $397.77

Ford AODE/4R70W Transmission Harness Specifications: Description_ASC Requires software version 5.0 build 100 or higher and ECU firmware 5.0 build 110 or higher ***Only compatible...

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Efi-Transmission-Control-Harness---Chrysler-46Re

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Holley

Holley 558-473 Efi Transmission Control Harness - Chrysler 46Re

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$424.01 $391.74

If your HEMI swap project is using a Chrysler 46RE Transmission, commonly found in 1996-2003 Dodge Ram - Dakota, or Durango V8 trucks, you...

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HOLLEY

HOLLEY 558-473 Wiring Harness Chrysler 46RE Trans Control

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$387.11 $0.00

Transmission Wiring Harness - Plug-N-Play - j4 Connector - Terminator X MAX - 46RE - Chrysler - Each

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Efi-Ford-Crank-Sensor-Module---Ford-7.3L-Godzilla

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Holley

Holley 558-474 Efi Ford Crank Sensor Module - Ford 7.3L Godzilla

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$83.69

Ford 7.3L Godzilla Crank signal conditioning module for Dominator - HP - and Terminator X ECU's. Requires Holley EFI V6 Build 300 or Terminator...

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Holley

Holley 558-475 Efi Pwm Alternator Harness

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$128.19

Plug and play Holley EFI alternator harnesses for late model engines with Pulse Width Modulated alternators. This includes most 2007+ GM engines and most...

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Holley

Holley 558-476 Efi Pwm Alternator Harness

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$113.04

Plug and play Holley EFI alternator harnesses for late model engines with Pulse Width Modulated alternators. This includes most 2007+ GM engines and most...

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Holley

Holley 558-480 Efi Transmission Harness - T-56 Magnum

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$332.09

T-56 Magnum Transmission Harness - Terminated for VSS, Reverse Lockout, and Reverse Lights. Specifications: Description_ASC Requires: Terminator X Max ECU with V3 Build 100,...

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Holley

Holley 558-481 Efi Transmission Harness - T-56

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$332.09

F-Body T-56 Transmission Harness - Terminated for VSS - Reverse Lockout and Reverse Lights Specifications: Description_ASC Requires: Terminator X Max ECU with V3 Build...

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Tremec-TkxTko-Trans-Wire-Harness-Term-X-Max

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Holley

Holley 558-482 EFI Transmission Harness - TKO

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$320.53 $316.82

Tremec TKX - TKO Transmission Harness - Terminated for VSS - Reverse Lockout and Reverse Lights Specifications: Description_ASC Requires: Terminator X Max ECU with...

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HOLLEY

HOLLEY 558-489 Sniper-2 tp Sniper-1 Adapter Wire Harness

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$89.45

Wiring Harness Adapter - Sniper EFI - Sniper EFI 1 to Sniper EFI 2 - Each

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HOLLEY

HOLLEY 558-490 7-Pin Main Harness - Sniper TBI

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$233.40 $0.00

EFI Wiring Harness - Main Battery Harness - Fuse / Fuel Pump Relays - Kit

Engine-Control-Module-(Ecm)-Wiring-Harness

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Holley

Holley 558-490 Sniper EFI Main Wiring Harness

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$261.62

This harness includes the Switched 12v Power Wire, Main Battery Power and Ground, Fuel Pump Relay, Coil - Input wire, and Magnetic Distributor Input...

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HOLLEY

HOLLEY 558-491 10-Pin Harness - Sniper TBI

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$90.86 $0.00

EFI Wiring Harness - Input / Output Harness - Holley Sniper EFI - Each

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Holley

Holley 558-491 Sniper EFI I/O Harness

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$102.29

This harness gives you the access to 2 Ground Trigger Inputs, 3 Ground Trigger Outputs, also the Points Output, Tachometer output, and Digital Gauge...

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HOLLEY

HOLLEY 558-493 Adp. Harness Sniper EFI to EFI Dual Sync Distr.

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$66.04 $0.00

Ignition Wiring Harness - Plug-N-Play - Sniper EFI to Holley EFI Dual Sync Distributor - Each

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Holley

Holley 558-493 Sniper EFI To Dual Sync Distributor Ignition Harness

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$65.60 $63.99

This ignition adapter ensures your Sniper EFI ignition installation is a snap! Simply plug up both connectors, terminate the Pink Wire to a Switched...

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HOLLEY

HOLLEY 558-495 Sniper 2 CAN to USB Dongle Comm. Cable

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$126.22

Communication Cable - CAN Plug to USB Interface - 8 ft Length - Holley Sniper 2 EFI Kit - Each

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HOLLEY

HOLLEY 558-497 Sniper 2 I/O Harness

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$70.33

EFI Wiring Harness - Sniper 2 EFI - Input / Output Harness - Holley Sniper 2 EFI - Each

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HOLLEY

HOLLEY 558-498 Sniper 2 Bluetooth Module

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$284.21

Bluetooth Module - Sniper 2 EFI - Plug-and-Play - Smartphone Compatible - Each

Efi-Terminator-X-Max-Transmission-Kit---Gm-6L8090

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Holley

Holley 558-499 Efi Terminator X Max Transmission Kit - Gm 6L80/90

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$914.41

Add GM 6L80/90E transmission control to any existing vehicle utilizing a Terminator X Max ECU. A departure from traditional Holley EFI transmission control, the...