Power adders. Years ago, a supercharger was the only means of building more power. Then came nitrous oxide, but many shied away from that because they saw too many lean-condition explosions. In recent ...

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 ...

The hefty Trailblazer SS is a stout performer for its size, but with the STS Turbo Remote Mount Turbo System, the full-size SUV will have no problem keeping up with tweaked V-8 coupes. Go from 340 ...