A turquoise BMW M4 G82 undergoes dyno testing to measure and optimize engine performance in a controlled environment. This ...

This BMW M3 E92 undergoes a dyno test after performance upgrades including a full exhaust system, intake kit, and Stage 2 ...

Announced two years ago, the Challenger Demon 1700 was to make 1,700 hp and 1,400 lb-ft; the measurement "As Installed" says ...

We know the GR Supra B58 engine can make crazy power, but check out how the Nissan Z's twin-turbo V-6 reacts to basic mods by ...

APR has an interesting new Haldex AWD-system tune for VW and Audi performance vehicles.

Not satisfied stock, Richard Hammond turned to Motorsport and Performance for upgrades. Then he put his supercharged Dark ...

Automakers love to brag about massive engine power ratings. Discover why the Ford Mustang Dark Horse might not actually make what the factory claims.

Well, this is kind of like the opposite. It’s his single-rotor Miata, which he’s been building and featuring on his YouTube ...

Mustang Lifestyle hit the dyno again to push its 2020 Shelby GT500 to the limit. Smaller pulleys and cooler air unlocked ...

Most people forget Chevrolet even sold a turbocharged four-cylinder Camaro. One owner from Iowa just made sure nobody forgets ...

This 2002 Nissan R34 Skyline GT-R CRS by Nismo is part of a collection of five rare GT-Rs headed to auction. Organized by ...

A 1999 Nissan Skyline GT-R R34 finished in Midnight Purple and packing tons of JDM modifications is expected to fetch up to ...