Originally Posted by El Hombre
I've read about using a 3/4" hole saw mounted on an 18" bit extension and drilling the baffle. Now that I can see what's exactly in there, I might not do it. That would bypass almost all of the baffles.
It's supposedly only a little louder, but from you photo, I don't think so.
Anybody try it? Too noisy?
IIRC, that was in an article about hotting up airheads printed in the early '80s, along with a bunch of other performance tips. I'd been reminded of that tip when I was looking at the pics of the disected muffler earlier too.
I'm quite reluctant to try that on my S/S Keihans, but am interested in feedback from anyone who has . . .