We've just spotted one of the most insane mufflers ever made. It looks like somebody forgot how a turbocharger worked and decided to reinvent the wheel as it were. As you can see from the photo above, ...

We know you've been sitting on the edge of your seat since last month when we tested every true CAI (cold-air intake) we could get our hands on for the Mk4 VR6. Well, as promised, this month we tested ...

Often-times, the sky -- and budget -- is generally the limit when considering how to make a car go faster. There are two core components to doing this: decreasing weight and increasing power, both of ...

One of the more common issues that can create problems with modern engine aftertreatment systems are air leaks in the intake and aftertreatment plumbing. “Air leaks typically impact the engine and ...

We're all interested in getting more power and mileage from our sport trucks. The question is how to get it. Two of the most popular bolt-on performance parts are free-flowing intake and exhaust ...