I have been using XFI™ System from FAST™ for the last 1.5 years and it has significantly improved my consistency on race day. Using the FAST™ XFI™ has provided my EFI race tune-up with better engine starting, drivability, cleaner burn-outs, and also in different temperatures/air densities allowed the engine to cleanly get up on the transbrake and leave the line. This is critical in heads up racing and has increased my number of rounds won. I attribute this to the FAST™ processor(s) and update time that we see online when making adjustments.

The system has been a plug and play from the beginning and I have had zero issues with reliability. The XFI™ software allows us to program a very basic setup or we can then choose to use the advanced functions when we need to. As we progress with our engine program we are then able to unlock more horsepower with our XFI™ to significantly improve out ETs.

John Macdonald
NMRA SSO #2
White Lake, MI