Had an extra stock muffler so why not try and get a little sound out of one. I didn't have a hole saw that would reach to the back so I used a regular 5/8" drill bit and drilled two separate holes. It back pops a little now but I think the performance hasn't really been changed much.
Made a video comparing before and after
http://www.youtube.com/watch?v=zuTIF...ature=youtu.be