This adapter kit allows for added functionality with the FAST XFI. This harness allows you to add up to 8 additional inputs to your XFI ECU. This harness is designed to aC-Commodate 0 to 5 volt range...

The XFI EGT (Exhaust Gas Temperature) Module from FAST allows XFI/XFI 2.0 owners to monitor up to 8 EGT sensors without requiring the use of the 8 spare auxiliary XFI inputs. The XFI EGT Module...

This harness allows you to connect the XFI to an electric fuel pump and an electric fan. This harness gives you the pre-built harness needed to allow the XFI to control your electric fuel pump and...

This adapter kit allows you to run two precision sensors (0 to 100 PSI) to your XFI ECU. Use two of our 307602 sensors to monitor fuel and oil pressure and know that your XFI can protect you in case...

These adapters allow a common ECU and main harness to adapt to a variety of power adders. Connect multiple Nitrous solenoids and take full control over your power adders with the XFI ECU using this...

The FAST XFI ECU has provisions for 8 analog inputs. These can be used to monitor and record various engine or chassis parameters. Fuel pressure and oil pressure are two examples. FASToffers a...

This adapter kit allows for added functionality with the FAST XFI. This harness allows you to connect a vehicle speed sensor or a driveshaft speed sensor to your XFI computer.

FAST XFI Fuel Injector Harnesses connect the XFI ECU to the fuel injectors. These harnesses are designed to aC-Commodate most common V8 engines from the Chevrolet Small Block to GM LS Series, Ford...

Ideal for Race, High RPM ApplicationsFits Non-Computer Controlled internal coil GM HEI Distributor

Whether you want to install a new inline fuel pump, or retro-fit an in-tank pump into a fuel tank that was originally manufactured without a pump, FAST has an easy solution for you. All FAST fuel...