What the hell is this??

J0N

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2009 S3

Found this hanging down by the back box whilst washing the car, it looks like it’s been zip-tied out of the way.

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It's the valve for the OEM exhaust. Looks like you may have an aftermarket cat-back fitted?
 
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Valve mod, Google it.
 
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Yes, I have a Milltek that was on the car when I bought it.
Thanks for the quick replies.


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