Drilling stock mufflers..
Thread Starter
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Intermediate
Joined: Jul 2011
Posts: 46
Likes: 0
From: Canada
Drilling stock mufflers..
I have heard of guys drilling out their stock mufflers, I was talking to a guy the other day, he said he did years ago and used a 1 inch hole saw..Has any body had any experience doing this, and is that hole big enough..How do you guys rate the sound..I have an 05 road king custom ..... brummie
Road Master
Joined: Apr 2011
Posts: 1,145
Likes: 98
From: Colorado Springs
This is something lots of guys did in the old days. Seems most bikers are much better of financially these days. I can't remember how bid of a bit to use. Do an internet search you're bound to find some helpful info.
Grand HDF Member
Joined: Jan 2012
Posts: 4,459
Likes: 2,893
From: Oklahoma
I drilled mine, I got the biggest hole saw that would fit in both ends of the muffler. Drilling out the cat was the hardest part but time and persistence paid off. The new sound is louder, but more of a crack than a deep mellow sound. If someone made a budget priced after market muffler, especially with adjustable baffles, styled like the Road King factory units, I'd have tried those. No one makes those and I don't much care for any of the others (just personal taste) so I'm happy with what I have.
Thread Starter
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Intermediate
Joined: Jul 2011
Posts: 46
Likes: 0
From: Canada
Drilling exhaust
Sounds like a good idea...so the round bar would be how big in diameter .....you went all the way through ..yes. Brummie
Last edited by brummie; Mar 21, 2012 at 08:41 PM.
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
..however if you put too much force on the muffler, you break the header pipe...
alot of guys try this on the trail of disappointment until they find pipes that work for them.
I am certainly not the guy who says "you spent 25K on a bike, spend 2K on pipes"- I am mr cheepo, but try to be smart about it.
I've drilled mufflers for newbie neighbors, which sound like a$$, and now are in the garden shed ( If I could get enough, I'd do a fence out front)
mike
alot of guys try this on the trail of disappointment until they find pipes that work for them.
I am certainly not the guy who says "you spent 25K on a bike, spend 2K on pipes"- I am mr cheepo, but try to be smart about it.
I've drilled mufflers for newbie neighbors, which sound like a$$, and now are in the garden shed ( If I could get enough, I'd do a fence out front)
mike
Last edited by mkguitar; Mar 21, 2012 at 08:48 PM.
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Road Master
Joined: Apr 2007
Posts: 857
Likes: 1
From: Waynesboro, Va
There are numerous mufflers on ebay and the forum for sale, some have the removable baffle and others require drilling or punching out. You could invest in a cheap set of mufflers and experiment before screwing up your stock pipes or should you punch out your stock mufflers, you can find replacement mufflers pretty easy..
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Road Master
Joined: Sep 2008
Posts: 799
Likes: 8
From: central Il
oddly enough on my dads 10 trike he want to do this so i took the muffler off and used a 3/4 pipe coupling with a 7/8 piece all thread rod and pressed out the baffle and was surprised of the difference sounds a lot better
Road Warrior
Joined: Oct 2005
Posts: 1,355
Likes: 32
From: Houston, Texas
I have heard of guys drilling out their stock mufflers, I was talking to a guy the other day, he said he did years ago and used a 1 inch hole saw..Has any body had any experience doing this, and is that hole big enough..How do you guys rate the sound..I have an 05 road king custom ..... brummie