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Open Roads Forum  >  Class B - Camping Van Conversions

 > supertrapp muffler & resonator arrived NOT what I expected

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DAWg134

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Posted: 08/09/12 11:46pm Link  |  Print  |  Notify Moderator

Having used SuperTrapp systems on various off-road motorcycles over the years, I just wanted to clarify a common misconception regarding SuperTrapp mufflers.

Adding additional diffuser discs to the stack will actually INCREASE noise and DECREASE backpressure. The first time I ordered a S/T, I wanted the motorcycle to be as quiet as possible since it was street-legal and I planned to ride it occasionally on the road... so I ordered an extra set of discs.

Imagine my surprise when my 12-disc SuperTrapp hardly deadened the exhaust noise whatsoever. I took out half the discs to reduce to the recommended number for my bike and then it simply purred.

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 > supertrapp muffler & resonator arrived NOT what I expected
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