Does muffler shape matter?

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Sep 19, 2012 | 06:56 PM

darkcustom48

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Cruiser

Joined: Jan 2011

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Does muffler shape matter?

I finally decided on just doing Vance and Hines slip ons on my stock 2012 Road King headers. I am still on the fence as to which model to chose. Curious, is there any performance or sound difference between oval and round mufflers or is it just looks? I am going with big sucker high flow and the LCD fuelpak. I am open to suggestions.

Sep 19, 2012 | 07:25 PM

candave650

Cruiser

Joined: Apr 2011

Posts: 107

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From: Ontario,Canada

Performance wise I think they are pretty equal
I am using V&H Twin Slash Rounds and according to V&H they are louder than the ovals .

2010 FLHTC V&H Power Duals,Twin Slash Rounds,VO2 intake,Fuelpak

Sep 19, 2012 | 08:24 PM

Geezr Glidr

Grand HDF Member

Joined: Jun 2009

Posts: 3,520

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From: Wellsboro, PA

I could feel more "guts" on mine when I put on Vance & Hines High Outputs, but I also have Vance & Hines Power Dulas headers. There defintely is a difference in sound. I didn't like the sound of the Monster Ovals when I heard them. Well, not for me anyway. Not what I was looking for.

Sep 19, 2012 | 11:27 PM

j1mmy

Elite HDF Member

Joined: Dec 2009

Posts: 4,598

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From: navarre ohio

shape is basically just for looks.the sound depends on baffles and how free flowing the exhaust is. the exception is if you have an open megaphone shape, it is going to be louder.