This video tutorial demonstrates how to complete the hole saw mod on a 2007 Shadow Spirit 750. The hole saw mod is the removal of the resonator from the end of both tailpipes using a hole saw drill bit. I am a complete noob and this is my first modification to the bike. I couldn't be happier with the improvement in sound. Should have done this a long time ago.

I refer to the resonator as the baffle. That is incorrect. Also, I have not had to make any other adjustments since the mod. There is no popping on deceleration or any other noticeable problems.