When any kind of new electronic wizardry comes out, the marketplace races to make it better. Fuel Air Spark Technology (FAST) has done just that with its new XFI electronic fuel injection system. XFI ...

Electronic fuel injection (EFI) really has been a great innovation. For well over 20 years, OEM offerings have benefited from the improved fuel mileage, throttle response, and all-around driveability ...

The FAST XFI 2.0 brings a ton of valuable new features to the already excellent standalone EFI system. After a full year's worth of research, track testing and data gathering by FAST racers and ...