Get long drill and drill up the hole in the end there a plate up there that you drill threw and it opens it up it make it louder and more high end power.

I'd wait 3 months in case your hearing returns.  

Verslagen1.....Did you say something? Just kidden.  And Trippah,thanks for thinking of me man, I'll let you know when I need them. Does anyone else hear that darn ringing noise?

MAYES wrote on 06/04/08 at 18:54:57:




I did this to my Harley Dyna muffler.  I used a 12"long,  5/16" drill bit.  While the muffler was on the bike, I placed the drill bit into the output end of the muffler, contacting the baffle.  Drill one hole at the 6 o'clock position.  Ride the bike.  If you want it louder, drill another at the 10'oclock position.  Louder still, drill another at the 2 o'clock position.  If you change your mind later and want it quieter, use a ratchet with a long extension and a socket to fit a short 3/8" Lag bolt, and screw it in to one of the holes you drilled.  I settled on 1 hole in the baffle.