When it comes to hand-held tuners that modify the factory tune on a mildly upgraded Mopar Hemi, the Predator was the tuner of choice for nearly a decade. At the time of its introduction, the Predator ...

The 5.7 HEMI is one of the most recognizable and celebrated American engines ever made. It's a beast of a power plant, with up to 395 horsepower and 410 lb-ft of torque on tap — right out of the box.

HP Tuners LLC, founded in 2003 by Keith Prociuk, Chris Piastri, and Ken Cannata, is one of the youngest aftermarket flash-tuner companies. In the few short years of its existence, HP Tuners has hit ...

Welcome to the very first tech story ever published on a C7 in the pages ofGMHTP. We've had our hands on a few of them at this point, but we never had the opportunity to modify one – until now. Rather ...