Alright so i bought a new muffler and took it apart and inserted fiberglass packing in it and punched the baffle out. I gained torque and smoothed out top end.
and my youtube vid:
http://www.youtube.com/watch?v=1_kAkipr1jM&feature=c4-overview&list=UUgdCQCrArC_TvW9MISQrbhw
and my youtube vid:
http://www.youtube.com/watch?v=1_kAkipr1jM&feature=c4-overview&list=UUgdCQCrArC_TvW9MISQrbhw