How to quiet a Vance&Hines 4into1 baffle
- undiablo
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How to quiet a Vance&Hines 4into1 baffle
22 Aug 2019 06:20 - 22 Aug 2019 06:20
Hope it can help someone who wants a quieter exhaust, but still louder than OEM.
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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Last edit: 22 Aug 2019 06:20 by undiablo.
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- Knucklehead
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Re: How to quiet a Vance&Hines 4into1 baffle
22 Aug 2019 11:05 - 22 Aug 2019 11:06
Thanks! From my experience, I didnt think you could make a Vance and Hines quiet. LOL

1978 KZ650B
2009 Voyager 1700
2009 Voyager 1700
Last edit: 22 Aug 2019 11:06 by Knucklehead.
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- undiablo
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Re: How to quiet a Vance&Hines 4into1 baffle
22 Aug 2019 12:03
Nevertheless it works. :woohoo:
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- daveo
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Re: How to quiet a Vance&Hines 4into1 baffle
22 Aug 2019 12:34 - 22 Aug 2019 18:06
Perhaps I'm seeing this all wrong, but I have concern about what you are doing. Please consider the following thought before proceeding further with your concept.
Is it possible that forcing all the engine exhaust through that tiny hole in the middle of your disk, you may be converting that Vance & Hines baffle into a dangerous projectile? If that thing was to get blown out the back of the meg with the right amount of force, you may end up with a problem.
It is never dumb to be too careful.
Please post an "installed" pic from an angle similar to:
Is it possible that forcing all the engine exhaust through that tiny hole in the middle of your disk, you may be converting that Vance & Hines baffle into a dangerous projectile? If that thing was to get blown out the back of the meg with the right amount of force, you may end up with a problem.
It is never dumb to be too careful.

Please post an "installed" pic from an angle similar to:

1982 KZ1100-A2
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Last edit: 22 Aug 2019 18:06 by daveo.
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- baldy110
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Re: How to quiet a Vance&Hines 4into1 baffle
22 Aug 2019 15:33
Geez it's not that loud with the stock baffle.
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- undiablo
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Re: How to quiet a Vance&Hines 4into1 baffle
23 Aug 2019 05:22
Looks like a Gatling machine gun. Sounds pretty good for me. Long trips can turn annoying with louder exhausts.
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- undiablo
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Re: How to quiet a Vance&Hines 4into1 baffle
23 Aug 2019 05:33
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- saxjonz
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Re: How to quiet a Vance&Hines 4into1 baffle
23 Aug 2019 19:36
To be quite honest I didn't think it was louder than stock to begin with. That said, pipes are loud for a reason? Breathing and such play a part in making power. Put another way my RSX 2.0 type s with rotrex 3 inch thermal pipe came with a baffle to suppress the noise. What was the end result? Yeah, not great. Car was stifled in power and still droned at highway speed. My car is obnoxiously loud with supercharger and 400 hp, like louder than the 8 cylinder versions at the strip that are modified. As long as the stock baffle is installed with the fiberglass pipe barely sounds more than the stock exhaust but take out the fiberglass...and....it still sound not loud. Take the baffle out and...a little bit loud but only to you. Gawd, I miss riding mine. I give myself a month more then whatever I have to do to make the time I am taking her out by golly! That Bassani sounds hella nice at wot.
79 LTD B3
80 LTD B4 1075 kit JE Pistons .410 cam grind, Bassani, 31 keihin CR Specials...
1980 Z1R, 2002 ZRX1200, 2003 ZRX1200
80 LTD B4 1075 kit JE Pistons .410 cam grind, Bassani, 31 keihin CR Specials...
1980 Z1R, 2002 ZRX1200, 2003 ZRX1200
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