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      11-22-2021, 05:42 PM   #200
TopJimmy
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Drives: 2023 M3 Comp xDrive
Join Date: Jul 2019
Location: Chester County, PA

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Originally Posted by SikhF80 View Post
Quote:
Originally Posted by TopJimmy View Post
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Originally Posted by SikhF80 View Post
I have the catless arm resonated downpipes for my f80 m3. Installer mentioned a couple ppl complained about rattling. It happened.. emailed ARM they sent the same flange with an o ring. Tried again still rattling.

Can anyone recommend a "heat wrap" or whatever it is to buy. Thanks
I like a foot long inch wide strip of aluminum foil rolled up or folded, then wrapped around that one pipe to be squished by the flange. It stops rattle.

The permanent fix is to ask an exhaust shop to weld a few decent beads from pipe to flange (while installed), not just a tack or two, and don't need the whole thing either.
Like the cooking aluminum foil? Lol
Yes, cooking foil. If you've ever seen a new turbo or down pipe gasket it's basically compressed foil tape.
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'18 F80 Base 6MT | '19 F82 Exec DCT | '18 F82 Comp Exec DCT | '23 G80cx
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