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      11-21-2012, 06:52 PM   #1
ms372
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Drives: AW E92 m3 6MT
Join Date: Mar 2012
Location: Montreal

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valved exhaust system

will adding a valve to an exhaust that wasnt designed to have them change anything in terms of sound levels ?

for example the valved gintani exhaust looks like their regular muffler with the addition of two QTP valves and it seems to change the sound.

with
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without
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now if i was to add two QTP valves to my exhaust would this do anything or will it be a waste of money and im better off just change my muffler to something that is designed with it.

would appreciate some feed back