drilling 1984 mufflers

i have seen a post on drilling mufflers but thanks to another member on this board {sorry dont remember the name} anatomy of a muffler i have found i cannot do it this certain way with my mufflers. i have the cones and if i took them off i would have the middle pipe sticking out. my question is how is the best way to do this?

thanks alot

Don't know how much noise you are looking for, but I just drilled mine out with a 7\8 spade drill bit. From both ends. Gives a bit of a rumble, not anything loud but enough to show that work is being done. Easy to do, all you need is a long extension, the metal is really quite easy to drill out.

I sawed mine at the weld with a hacksaw and drilled them out. Yea I know one of the holes is not uniform. But hey when I'm cruising nobody notices. The noise is not bad for the rider. I still listen to my am,fm ok.

Check out this post to see what's inside.

http://www.venturerider.org/forum/showthread.php?t=3365&highlight=anatomy