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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Exhaust drone idea



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      08-25-2009, 02:06 PM   #1
chanceparker
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Exhaust drone idea

The OEM exhaust has a big rubber donut-type thing welded on one pipe. Must be a vibration dampener of some kind.

Has anybody experimented with welding it onto aftermarket exhaust to lessen the drone? If yes, can you buy just that part?

Thanks
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      08-25-2009, 02:09 PM   #2
Kevin@AKMotorwerk
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Quote:
Originally Posted by chanceparker View Post
The OEM exhaust has a big rubber donut-type thing welded on one pipe. Must be a vibration dampener of some kind.

Has anybody experimented with welding it onto aftermarket exhaust to lessen the drone? If yes, can you buy just that part?

Thanks
it wont make it drone any less, the only thing it may fix is the rear rattle that everyone experiences, but i even doubt it will do that
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      08-26-2009, 04:59 AM   #3
Former_Boosted_IS
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Quote:
Originally Posted by sexye92 View Post
it wont make it drone any less, the only thing it may fix is the rear rattle that everyone experiences, but i even doubt it will do that
I have zero rattles and drones on my HKS. I think it is more a function of the exhaust choice personally. Have you guys made sure all your flanges are tight or if welded there are no leaks?
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