The premise of the test was simple. First we'd select a test vehicle, then run all the mufflers on the chassis dyno to determine the horsepower output and back pressure of each set, and then test them ...

The main thing that separates hot street cars from race cars is mufflers. Heck, you've got blowers, injectors, roller cams, ported heads, and anything else you can name on street cars these days.

There's so much data here, we simply don't have room to dissect it all, but you have it now, so you can choose the mufflers you are interested in and run the numbers through Excel if you are really ...