FAST XFI fuel injector wiring harnesses allow you to incorporate non-OEM fuel injector plugs into your stock wiring harness. They're designed to be used with XFI ECU and XFI main harness's only. Available for different types and sizes of engines, they make the installation of a different style of injector no problem.

More From This Category

FAST Wiring Pigtail, Early/TPI MAP Sensor to Metripack/LS Harness Adapter, Each

FAST Wiring Pigtail, Early/TPI MAP Sensor to Metripack/LS Harness Adapter, Each

$40.03

FAST Power Adder Wiring Harness for Nitrous and Power Adder Enable/Hold

FAST Power Adder Wiring Harness for Nitrous and Power Adder Enable/Hold

$75.10

FAST Electric Fan and Fuel Pump Harness for XFI

FAST Electric Fan and Fuel Pump Harness for XFI

$174.94