Cutting down your exhaust is a crucial part in building a fully-functional stunt bike. Long pipes will hit the ground and either damage the pipe severely or perhaps rip your muffler and midpipe off the headers, which is both annoying and potentially dangerous. Cutting down your exhaust can be a bit of a puzzle, depending on how your specific pipe is constructed, but with some planning and a little creativity you will find it’s a pretty simple task. www.stuntbums.com