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Old 24 Jan 2012
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R80GS Basic silencer

A daft question, how do you know if the silencer on your bike is defective (baffles gone)? I have a keihan system but the stock BMW silencer, it looks ok, no rust , leaks etc on the outside but the exhaust is noisy especially under acceleration
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Old 25 Jan 2012
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Originally Posted by simplemind View Post
A daft question, how do you know if the silencer on your bike is defective (baffles gone)?
The Keihan "Y" WILL make it louder. If you get a bit of "burble" on slowdown when just blipping the throttle, its probably toast.

I put a BSM Y and end can in mine (r100GS), and its nice now. Motor feels smoother too... The Keihan Y is more of a T and does nothing good... IMPO of course.

John
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Old 13 Jun 2012
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I have a Keihan silencer. It makes a horrible high pitch rattle. Baffles loose. You'll know if you have that problem.

Went that way almost as soon as i put it on. Keihan have offered to fix it, but i have to send it to them. I had a Laser Produro before that, which was great.
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Old 13 Jun 2012
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Also, there seems no appreciable difference in power or torque with the various exhaust set ups.
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Old 14 Jun 2012
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The original BMW silencer on my R80GS had a stainless body with mild steel baffles which rotted out after about 12 years, a similar age to yours now I would guess. Why they never made the whole system out of stainless is a mystery but I how have a complete Keihan system on both an 80GS and G/S, both I find to be good.
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