Originally Posted by fdh161

I did that on mine when I first got it. If you look down a set of Street Cannons, you'll see they are the stock mufflers without the plug. The Street Cannon end caps even screw right on. You'll hear some difference in sound volume, but it won't be close to what you'd get with the S&S mufflers. Problem is the pipe through the stock and street cannons is (if I remember correctly) 1-1/2" diameter. The pipe in the S&S is 2". All in all, though, if you want the same sound as Street Cannons without spending the cash, drill away! It's a cheap way to improve things. Pics looking down stock pipe and Street Cannon attached.

Originally Posted by Bowhunter8607

Apologies for the hijack but did you notice any difference in the performance after drilling your stock mufflers out positive or negative?

Originally Posted by realsteel

Hi am I noticing in top street cannons pic the removable baffle pipe is still inserted? I took caps of then drilled out rivets to just pull out restrictor. Or there still seems to be like a smaller section in the centre of muffler like a washer with hole in it. Is this what we are talking about drilling? cheers

Originally Posted by blackSP

The baffler pipe/db killer is the first thing you remove, than if you need a bit more sound you drill the end cap inside the muffler en pull it out completely.

Originally Posted by Bowhunter8607

To end my hijacking of this thread I will post some more pictures of the modified pipes to hopefully contribute to the thread and possibly help someone else looking to do this. I punched mine out with a piece of rebar and a small sledge hammer. Worked like a charm. Here is what it looks like with the caps punched out.





As blackSP stated before, penny sized caps came out.