All Products

Have you been searching for a reason to discard your old noisy mechanical speedometer cable? If so, the Holley GPS Module for our 7" Digital displays should be the next addition to your project vehicle. Featuring a simple plug and play installatio...

Replacement I/O Adapter for Digital Dash.Features: Replacement adapter Input/Output Included USB drive Black color Specs: Brand: Holley EFI Category: Vehicles, Equipment, Tools, and Supplies Color: Black Emission Code: 5 Grade Type: Performan...

I/O Adapter w/Terminated Vehicle HarnessFeatures: Provides (10) addiitonal inputs/outputs to the 7" digital dash Brings out connections to a waterproof 26 pin connector similiar to ones used on EFI units Includes USB memory stick to update digital...

I/O Adapter w/Unterminated Vehicle HarnessFeatures: Provides (10) addiitonal inputs/outputs to the 7" digital dash Brings out connections to a waterproof 26 pin connector similiar to ones used on EFI units Includes USB memory stick to update digit...

Terminated Vehicle Harness For Digital DashSpecs: Brand: Holley EFI Category: Electrical, Lighting and Body Emission Code: 5 Part Type: Dashboard Wiring Harness Product Type: Digital Dash Harness / Adapter / Module Sub Category: Wire, Cable ...

Discover Peak Performance with the CTI Tuner – Unlock the Full Potential of Your 2022+ Cummins! This package includes both the hardware device and the tune, ensuring you have everything you need to optimize your Cummins from the moment you receive...

Unlock Peak Performance with Custom Tuning for Your 2022+ Cummins – Achieve the Ultimate Power and Efficiency! This package includes the custom tune file only, with no hardware device included, giving you the flexibility to upload the tune using y...

The Cummins 6.7L Tuner Harness Plug Kit is tailored for 2013-2024 Dodge RAM 6.7L Cummins trucks, designed to protect and seal off unused harnesses after EGR or exhaust system modifications. Product Fitment: This harness kit is compatible with Dodg...

Discover Comprehensive Performance with the All-In-One CTI Delete Kit – Unlock the Full Potential with 2022 Cummins Tuning This package includes the blank CTI Tuner device with bench harness, custom tune, EGR kit and selected exhaust system of you...

This product requires an internet connection for operation. Ensure compatibility with your vehicle before purchase. Dodge RAM Smart Access Cable for 2018+ Dodge, Jeep, RAM, and Chrysler Vehicles Streamline your tuning and diagnostics process wit...

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 pre-crimped ECU pins Specs: Brand: Holley EFI C...

J2B ConnectorFour Additional Injector Driver OutputsFour Additional Coil Driver Outputs23 User Programmable OutputsSpecs: Brand: Holley EFI Category: Ignition Emission Code: 3 Harness Type: Auxiliary Part Type: Ignition Harness Product Type:...

J3 ECU Connector17 User Programmable Inputs and OutputsSpecs: Brand: Holley EFI Category: Ignition Emission Code: 3 Harness Type: Auxiliary Part Type: Ignition Harness Product Type: J3 Auxiliary Input/ Output Harness - Connector Sub Categor...

J4 ECU Connector26 User Programmable Inputs and OutputsSpecs: Brand: Holley EFI Category: Ignition Emission Code: 3 Harness Type: Auxiliary Part Type: Ignition Harness Product Type: J4 Auxiliary Input/ Output Harness - Connector Sub Categor...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimi...

Dominator EFI GM Dual Drive-By-Wire HarnessSpecs: Brand: Holley EFI Category: Air and Fuel Delivery Emission Code: 3 Harness Application: GM, LSX Harness Type: Drive-By-Wire Part Type: Fuel Injection Harness Product Type: Drive By Wire Harn...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...