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.

Many old-school tuners and hot rodders know their way around a carburetor and distributor. They also know today's technology enables better performance and gas mileage than we ever imagined. I'll ...

Born out of Chrysler's development of fighter jets during WWII, HEMI engines have been synonymous with power and performance ...

When it comes to electronically tuning your Mustang, the "chip" has been around for so long that trying anything else might make you leery. Of course, not all change is bad, and often there's a good ...

Making performance modifications to Harbor Freight’s single-cylinder Predator engine has become a thing, and we’re totally here for it. We’ve seen one fitted with a home-brewed, Koenigsegg-style ...