One of the biggest names in the aftermarket tuning industry, SCT offers a X4 handheld tuner that works on everything from diesel pickups to newer muscle cars, including our own turbo four-cylinder ...

Testing SCT’s X3 Power Flash programmer and a FRPP Super CJ oval throttle body—mods anyone can do to add 53 EZ horsepower.

SCT Performance’s new X4 Power Flash is a sleeker, more modern handheld tuner that delivers the performance tuning you expect, and a few new features that are sure to become essential aspects of ...