I took advantage of their $350 Flowmaster catback special for my new F-150 4x4 V8. The increase in performance was noticeable and the sound is awesome. I was laughing all the way home, because I felt like a kid with a hot rod. The price is half what the kit will cost you most other places because they use the Flowmaster muffler, bulk tubing, and fabricate on site. As add added bonus, the hot rod sound irritates the heck out of my wife :) The workmanship looks very good, and they did it in less than an hour while I waited.