Fluttering Sound Heard From Exhaust

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06-23-2015, 09:06 PM

MagicCity911

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Fluttering Sound Heard From Exhaust

I recently installed the FVD catless exhaust system with mufflers on my 997tt. I now notice a fluttering sound coming from the exhaust when the car is decelerating from 4k to 2k. It's hardly noticeable when the car is idling. Thoughts?

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06-23-2015, 09:12 PM

TT Surgeon

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Some of the early MM exhausts did that, contact Rhonda at fvd.

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06-23-2015, 09:44 PM

MagicCity911

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Really? Any idea what was causing it? I will put a call out to Rhonda tomorrow first thing. Thanks!

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06-23-2015, 10:56 PM

TT Surgeon

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No idea, I know the mufflers have an x pattern inside, something with that I guess.

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06-25-2015, 04:13 AM

James88

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Sounds familiar, read through this old thread.

https://rennlist.com/forums/997-turb...-my-turbo.html

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08-11-2015, 10:12 AM

Ibanezgod

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curious how mine sounds in comparison. Not sure what a "fluttering" sound would be

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08-18-2015, 03:18 PM

phillipj

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Love your car Jared!

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