First gear, useless. Second gear? Well, let’s just say you better be holding that steering wheel straight when the boost hits. The noise can only be described as a tearing sound, as the tires just ...

Too many 4.0L Wrangler owners have a Fifth gear (or overdrive gear) that is collecting dust, not having been used since the Jeep had stock tires. Adding bigger tires, axles, and body armor can all ...

In Part I of this story (Jan. '06), we introduced the Squires Turbo Systems (STS) rear-mounted turbocharger package for the '98-'02 LS1-powered Firebirds. The base STS kit retails for $3,995 and comes ...

Factory turbo cars by the hundreds of thousands now cruise our nation's highways. That translates into plenty of used turbos just lying around waiting to be scooped up by the adventurous rodder for ...

Twin turbo systems explained: how they work, why V6 and V8 engines use them, real-world performance gains, and when twin ...