Aftermarket EFI is nothing new. In fact, the first high-performance electronic fuel injection systems were introduced before some of our readers were even born. Those units were expensive, hard to ...

FiTech recently introduced a line of affordable and easy-to-install self-tuning induction systems for GM LS engines designed with both the do-it-yourselfer and the professional EFI tuner in mind. The ...

A hands-on dyno tuning session using a FiTech EFI system, packed with practical advice on throttle body adjustments, fuel maps, and optimizing engine performance. White House reacts after intel ...