When we last left our intrepid Iron Maiden in Part III, we pulled down some serious power from an incredibly mild combination of parts. We had the small 5.3L ported heads from our pals at West Coast ...

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 ...

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 ...

Finally, achieve optimal performance with Dyno Tuning using FiTech! In this guide, we dive into essential tips and tricks for adjusting your throttle body settings, ensuring your engine runs smoothly ...

In this video, we cover a full performance upgrade workflow, including a port injection conversion, essential AN hose assembly tips, and dyno tuning at FiTech for maximum power and reliability. You’ll ...