Relays are a required item whenever you want to use your XFI ECU to control a high-current device, such as a fuel pump or nitrous solenoid with one of its low-current outputs. FAST offers relays to cover many applications. When choosing a relay, it's very important that the relay current rating (shown in amps) be appropriate to the current requirements of the device you intend to control with it. So, if you're in need of a relay--think FAST relays.

More From This Category

FAST XIM Wiring Harness for LS1/LS6

FAST XIM Wiring Harness for LS1/LS6

$590.40

FAST LSX 92mm LS1/LS2/LS6 Intake Manifold Port to Cylinder Head Seal

FAST LSX 92mm LS1/LS2/LS6 Intake Manifold Port to Cylinder Head Seal

$7.99

FAST Linkage Kit for EZ Fuel Throttle Bodies

FAST Linkage Kit for EZ Fuel Throttle Bodies

$93.39

FAST XDi Sportsman Small Cap Distributor For Ford Windsor

FAST XDi Sportsman Small Cap Distributor For Ford Windsor

$797.41

FAST 2 Pack of 90 Degree Cannister Coil Boots and Terminals

FAST 2 Pack of 90 Degree Cannister Coil Boots and Terminals

$8.95

FAST 2/3 BAR Map Sensor Adapter for XFI TPI and Carb Conversion Harnesses

FAST 2/3 BAR Map Sensor Adapter for XFI TPI and Carb Conversion Harnesses

$16.09