The MK2 Focus ST gets a full turbo-back exhaust system upgrade with an Airtec downpipe. In this video, we go step by step ...

This video covers the full process of installing a Quicksilver exhaust system on my Porsche 911 Turbo S, along with sound clips and driving impressions after the upgrade. The goal: unlock more ...

In a diesel engine, adding more fuel will almost always result in more horsepower, and last month, that's exactly what we did in our "Fuel It Up!" article. There are drawbacks to making power in this ...

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 ...

We've known Brant Halterman of Virginia Classic Mustang (VCM) for more than 20 years. I met him in 1986 at the Mustang Club of America Grand National at Valley Forge, Pennsylvania, where I ...