Can you remove packing in mufflers without modifying tune?

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Dec 22, 2023 | 12:15 PM

No Tyme

Thread Starter

Tourer

Joined: Sep 2006

Posts: 482

Likes: 22

From: Bryan, Ohio

Can you remove packing in mufflers without modifying tune?

I need to pull my V&H Monster Ovals endcaps because of pealing and was thinking of removing the packing in the mufflers. If I keep the baffles and remove the packing do I need to "re-tune" my 103?

Dec 22, 2023 | 12:41 PM

Rains2much

Grand HDF Member

Joined: Sep 2022

Posts: 4,476

Likes: 3,860

From: Florida

Yes you can… but yes it will effect the tune.

Dec 22, 2023 | 01:04 PM

No Tyme

Thread Starter

Tourer

Joined: Sep 2006

Posts: 482

Likes: 22

From: Bryan, Ohio

Thank for the reply... Not looking for more sound so I think I'll leave it as is but need to freshen up them end caps.

Dec 22, 2023 | 01:36 PM

HeritageBrads

Road Master

Joined: Mar 2015

Posts: 1,028

Likes: 1,288

From: Scotland

Completely changes the tuning requirements of the bike and will make it way louder. Probably an unpleasant sound as well as empty end cans sound awful.

Dec 22, 2023 | 03:02 PM

b0fh

Road Captain

Joined: Jun 2008

Posts: 740

Likes: 228

From: Lagoa - VNF

yes. tune does not care.

Dec 23, 2023 | 04:12 PM

vtbigdog

Intermediate

Joined: Aug 2015

Posts: 42

Likes: 21

From: VT, GA

So 2 votes for yes, and one for no. Are these opinions or are there facts to back it up?

Dec 23, 2023 | 05:23 PM

702

Seasoned HDF Member

Joined: May 2018

Posts: 5,814

Likes: 7,147

From: Las Vegas

Quote:

Originally Posted by vtbigdog

So 2 votes for yes, and one for no. Are these opinions or are there facts to back it up?

Maybe.

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Dec 23, 2023 | 07:58 PM

OKMICK

Seasoned HDF Member

Joined: Jul 2012

Posts: 81,309

Likes: 36,894

From: Oklahoma City

Quote:

Originally Posted by b0fh

..., but i often change mufflers (stock, noisy, noisier, etc) depending on how bored i am...

Nice write up by an actual user. The more knowledgeable regarding back pressure, decibel maximums in their neighborhood, how they fixed any number of exhaust issues and several posts regarding product quality will be informative and certainly welcomed for varying reasons.

I am amused by what I quoted. Merry Christmas to you.

Been around a bunch, first time I seen a feller suddenly spring up, thrust a finger skyward and say, I'll change a muffler.

Last edited by OKMICK; Dec 23, 2023 at 08:00 PM.

Dec 23, 2023 | 08:28 PM

#10

downzero

Stellar HDF Member

Joined: Mar 2008

Posts: 2,328

Likes: 2,205

Quote:

Originally Posted by vtbigdog

So 2 votes for yes, and one for no. Are these opinions or are there facts to back it up?

If you want facts to back it up, you need to put a wideband O2 sensor in your pipes, remove the packing, and drive it and find out. The fuel trims will be different, whether they are different enough for you to think it's worth it to adjust the tables is a judgment call, not a factual question.