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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Wind noise at exhaust variable valve?

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      12-03-2018, 07:48 AM   #1
nordik1
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Wind noise at exhaust variable valve?

My exhaust system produces noise like wind noise.
When driving over 5,000 rpm and when strong back pressure is released from the variable valve, the wind blows through the variable valve.
like... chiiiiiiiiiiiik!! wind broken sound..
It sounds like a turbocharged sound!!
If anyone has experienced such symptoms, please suggest a solution.

Is the same sound from the brand variable valve type exhaust?
Appreciate 0
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