Flowtech Exhaust Buick GS 400 Parts

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.

If you're ready to get your street machine sounding as good as it looks, it's important to know how each muffler will affect your sound and performance. Take a listen and decide which muffler is best for your rod.

Here's a handy guide to familiarize you with our G-Comp line of performance suspension systems.