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      03-23-2021, 07:07 PM   #6
Nothing
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Drives: White/red M3
Join Date: May 2015
Location: North Carolina

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Quote:
Originally Posted by tauzins View Post
Quote:
Originally Posted by Nothing View Post
So I just got my car back after having catless downpipes installed. The whole system is an Active Autowerke's exhaust. The shop took the whole exhaust off the car while doing the downpipes and my first thought about this noise is that a joint came loose. If you've seen the AA exhaust it's really crazy with the nuts and clamps.

Because I have the catless downpipes I hear things I never heard before and need some insight from guys who know what things should and shouldn't sound like.

Here's the clip and it's the tinny rattle you hear coming off throttle that I'm concerned with.

Did you ever fix this? I have the same problem
Insisted this needed to be looked at and the shop found that the exhaust had settled differently and the sound was from that. There is also a sound at start up that happens when the car opens the waste gates at start up. I push the start/stop button 1 second before I actually start the car and it prevents the rattle at start up.
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