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Discussion Starter #1
So i have realised why my Stock M3 is loud, i can see all the flanges look like crap, so i am thinking of getting a flange kit (like the 8XR or I6 one) has anybody had a flange kit fitted, and do they work well? , or did you just go down an Aftermarket system route?

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I take it you are talking about the rear exhaust box flange ?

Years ago we used to make the flanges using original flanges from the main dealers and cut them down with a step to save customers having to buy a new rear exhaust box

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