Review on Supertrapp 344 2005 Stainless Disc Only Muffler by Fred Griffin

Amazing little muffler that reduces the shrill noise of the external turbine wastegate. While this might be an unpopular opinion, it also prevents unwanted attention if you want to send it in and experience the full WOT while still being able to engage in polite conversation or just enjoy the feeling of being in when you start being pushed into your chair. Note: It may be necessary to add more shims if not a stock Turbo or stock PSI as this can cause back pressure. The device comes with 12 drives, the maximum you can install is about 18, so 6 extra. More discs = more openness = less noise/air restriction = less back pressure. I highly recommend welding it to the drain pipe.