RE: CEN MG16 Exhaust Fix
The pede pipe did not do much for the engine according to Digout.
My experiences with the TC3 pipe off the back was also too much stuff that would scrape when it wheelied. My current set up of dual stock muffler seemed to work the best for me. The link i Pm'd you has that info in it.
but if you want to try it, all the parts are available threw Tower Hobbies, ebay, and your local LHS. every thing besides ebay is separate parts and you would just have to go threw the list of parts to find it. Other wise hop on traxxas' site and down load the rear end parts page. It should have the part numbers on it.