2009 Dyna Factory Exhaust
Road Warrior
Joined: Nov 2006
Posts: 1,699
Likes: 2
From: Deltona, FL
You can do the standard punch out of the disc in the mufflers. Some people completely punch it out, some just drill holes of various sizes. Personally, I drilled a 1/2 hole in my discs which gives me just a little more sound but would still pass a "nightstick" test.
Basically, just pull your muffler and look down it. You'll see a disc in the middle. You'll need a 12" bit or a standard bit and a 6" bit extension. I use a socket extension and a center punch to mark a center point. If you're using a bit extension, you can do the standard pilot hole/step up to target diameter.
Be sure to have someone hold the muffler tightly. I don't recommend using a vice because you can crush the sidewall. I do recommend that your holder use a rubber strap wrench. It will make the holding easier.
Oh, you won't require any fuel/engine adjustments for just pipe changes.
Basically, just pull your muffler and look down it. You'll see a disc in the middle. You'll need a 12" bit or a standard bit and a 6" bit extension. I use a socket extension and a center punch to mark a center point. If you're using a bit extension, you can do the standard pilot hole/step up to target diameter.
Be sure to have someone hold the muffler tightly. I don't recommend using a vice because you can crush the sidewall. I do recommend that your holder use a rubber strap wrench. It will make the holding easier.
Oh, you won't require any fuel/engine adjustments for just pipe changes.
Road Warrior
Joined: Feb 2009
Posts: 1,648
Likes: 5
From: Willow Spring, NC
try thsome guys on two wheel thunder that mod your mufflers for like 160 bucks . americancustom.com or something like that they give u 3 choice of baffles to use
Last edited by dreamer65; Jul 13, 2010 at 10:58 AM.
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