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I am driving an E36 M3 and have recently noticed a flutter like sound coming from the exhaust. At a cold start, it starts at low rmp's but when it runs for a while it takes more rpms to produce the sound. I have a Super Sprint exhaust and was woundering if anyone had any ideas. My mechanic said it was normal, but would like a second opinion.
 

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you link doesnt work hang10
 

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Originally posted by blue99m3@Oct 20 2003, 10:04 PM
I am driving an E36 M3 and have recently noticed a flutter like sound coming from the exhaust. At a cold start, it starts at low rmp's but when it runs for a while it takes more rpms to produce the sound. I have a Super Sprint exhaust and was woundering if anyone had any ideas. My mechanic said it was normal, but would like a second opinion.

what is the flutter sound like? I had a similar sound coming from the Altima when i had an aftermarket exhaust on it(dont laugh). It was there from the day i put it on. Once the muffler rusted out there was no flutter sound.
 
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