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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20 and N26 Turbo Engine / Drivetrain / Exhaust Modifications > Downpipe noise
Steve Thomas BMW
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      11-14-2012, 08:07 PM   #1
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Downpipe noise

Hi everybody,

Today I had my RaceWerks Downpipe installed on my 328i.
Everything was good, but the car now has a louder noise under hard foot acceleration in low RPM's.
If any of you had the dp installed, did you notice any noise change?! Mine is very noticeable.

Thank you!
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      11-14-2012, 08:18 PM   #2
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That's to be expected. My 2.0 TSI VW CC with a Borla catback became a bit too much when I added a downpipe to it.
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      11-15-2012, 02:20 AM   #3
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video please
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      11-15-2012, 04:49 AM   #4
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Well, what did you expect? If you want no drone go with the Performance exhaust, meaning original dp.

Besides the obvious sound change, how much difference in performance do you feel?
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