Some of these are gonna seem pretty basic. But everybody from the beginner to the seasoned engine-tuning veteran has probably been guilty of misdiagnosing a poor-running engine at some point in time.

Whether basic bolt-ons or forced-induction, gearheads can’t help but modify their rides. With the rise of handheld and PC-based ECU tuners, folks have an easier time than ever making big power from ...

I was lucky enough to be taken out in their 466bhp Stage 2 Audi RS3 and their 433bhp Ford Focus RS – both amazing cars, and the power they produce from their various tunes is truly incredible. I spoke ...