Engine block cylinder honing is a fairly straight-forward and decades-old practice that hasn’t required a lot of advancements through the years. Shops and garages across the country have peg boards ...

Performance Diesel Inc. (PDI) recently launched its Big Boss Tuner HD, a hand-held tuner designed for fast and easy installation that will typically deliver a 10 to 15 percent increase in horsepower ...

The second stop of the 2015-2016 Overdrive’s Pride & Polish National Championship season was held this month in St. George, Utah, at the headquarters of engine upfitters Performance Diesel Inc. The ...

That’s the question PDI’s Support the Cause pink 2001 Peterbilt 379 asks in more ways than one — the question’s painted on to the back of the truck’s cab (see photo below), and the 379 was designed ...

Giving any engine's air intake and exhaust tract a clearer entry (or exit) path is key to making more horsepower. In fact, it's very basic knowledge that any vehicle's air intake and exhaust system ...