FAST XFI main wiring harnesses will allow you to connect the XFI ECU to the main engine wiring harness of your vehicle. They feature pre-terminated ends with special Weatherpack connectors for a perfect fit. Available for different engine configurations and styles, the FAST XFI main wiring harnesses will make the installation of your XFI ECU a lot easier.

More From This Category

Rostra Transmission External Repair Harness Connector w/ 13 Wires, 4L60-E Holden Commodore, Chevrolet, GM, Holden, Isuzu, 1993-1998

Rostra Transmission External Repair Harness Connector w/ 13 Wires, 4L60-E Holden Commodore, Chevrolet, GM, Holden, Isuzu, 1993-1998

$120.33

Rostra Transmission 2-Pin VSS External Repair Harness, 4L60-E Holden Commodore, 4L80-E, 4T60E, Chevrolet, GM, Holden, Isuzu, 1991-2009

Rostra Transmission 2-Pin VSS External Repair Harness, 4L60-E Holden Commodore, 4L80-E, 4T60E, Chevrolet, GM, Holden, Isuzu, 1991-2009

$30.64

Haltech Rebel JZ, i6 Timer (EV1) Primary Injector Harness

Haltech Rebel JZ, i6 Timer (EV1) Primary Injector Harness

$199.00

Haltech Elite 2000/2500 Ignition Sub-Harness for Nissan RB Twin Cam (Internal Ignitor)

Haltech Elite 2000/2500 Ignition Sub-Harness for Nissan RB Twin Cam (Internal Ignitor)

$175.00

Haltech Wiring Harnesses, Elite ECU Universal Harnesses, Elite 750 Basic Universal Wire-in Harness Length: 2.5m (8'), Kit

Haltech Wiring Harnesses, Elite ECU Universal Harnesses, Elite 750 Basic Universal Wire-in Harness Length: 2.5m (8'), Kit

$410.00

Haltech Inputs & CAN Expansion, Nexus IO16 Input/Output Expander - 16 Channel

Haltech Inputs & CAN Expansion, Nexus IO16 Input/Output Expander - 16 Channel

$599.00