Buick GS Exhaust H-Pipes

Loud when you want it, quiet when you don't! Learn how exhaust cutouts work, manual vs electric models, and which is best for your build.

There's more to a performance exhaust system than just headers and mufflers. Selecting the best mid-pipe design and the addition of an H-pipe, X-pipe, or Y-pipe exhaust crossover can free up some inexpensive horsepower.

This dual exhaust size chart will help you choose the correct size exhaust pipe for your horsepower range.

Some basic info on the various exhaust options carried by Speedway Motors.

Whether you’re looking for performance improvements or heat reduction, if you decide to wrap your headers, we'll show you the benefits and possible precautions to take before you wrap your exhaust.

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

This veteran of the legendary "gasser wars" of the 60s looks right at home in the Museum of American Speed.