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Quiet down shorty slash cut muffler (Read 33 times)

springman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2295 Spring, Texas Gender:	Quiet down shorty slash cut muffler 04/16/26 at 09:51:23 My last HD muffler on the S40 bit the dust and I replaced it with a Milwaukee Twins slash cut shorty. It does not muffle nearly as much as I would like. Any recommendations on a cheap and easy way to quiet it down a bit?
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LANCER Serious Thumper Alliance Member Offline Savage Beast Performance Parts Posts: 10907 Oklahoma Gender:	Re: Quiet down shorty slash cut muffler Reply #1 - 04/16/26 at 11:29:42 Get a HD Dyna or Sporty Muffler.
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springman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2295 Spring, Texas Gender:	Re: Quiet down shorty slash cut muffler Reply #2 - 04/16/26 at 14:59:58 Thanks Lancer, but too late. This one is paid for and installed.
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blod Senior Member Offline SuzukiSavage.com Rocks! Posts: 353	Re: Quiet down shorty slash cut muffler Reply #3 - 04/16/26 at 16:42:31 LANCER wrote on 04/16/26 at 11:29:42: Get a HD Dyna or Sporty Muffler. I have a Harley Dyna muffler on my bike, sounds just right to me. But I'm deaf https://www.youtube.com/watch?v=orSU-_z8FVU
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Dave

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Re: Quiet down shorty slash cut muffler
Reply #4 - 04/16/26 at 18:05:44

If the muffler goes straight through.....it really has nothing to "muffle" with.

You may be able to install some form of a baffle to help. You will need to order based on the size of your tubing. Here are a few links to the kind of thing that might work:

https://www.amazon.com/Larcele-Motorcycle-Universal-Adjustable-XSQ-04/dp/B0DZ...

https://www.amazon.com/Larcele-Motorcycle-Universal-Adjustable-XSQ-04/dp/B0DZ...

https://www.amazon.com/VG-MOTO-Universal-Motorcycle-Eliminator/dp/B0CQSDGVZD/...

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Re: Quiet down shorty slash cut muffler
Reply #5 - 04/19/26 at 19:53:27

I bought a piece of stainless tubing with the holes in it. Cut , shape , weld up my own baffles. They run so much better with some back pressure. The core in trackers muffler is repackable , helps keep it to a tolerable level , while others are just a baffle without packing. I can always redesign it to be packed if needed. Some aren’t real good looking but are quite functional. They are hidden in the pipe or muffler anyways , out of sight. It is a major PIA making exhaust & baffles but I get it how I want it and that’s real important to me. A sexy exhaust can make or break the builds final appearance , so yes it’s very important. Cool

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springman

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Re: Quiet down shorty slash cut muffler
Reply #6 - Yesterday at 10:26:00

Thanks. Yep, some sort of baffle is what I will probably end up with. I suspect it will be a baffle something like Dave pointed out. I just need to measure the I.D. and depth (I understand that the longer the baffle the more it will quiet things) of the new muffler and then see what is available. Thanks for the help gentlemen.

06 S40 seat mod, airhawk, HD muffler, Shinko 712 140-90-15 rear tire, Shinko 230 front tire, versy cam chain tensioner, Rotella oil, Volar brake pads, EBC clutch & springs

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