I have the AA filter and I get that rattle. I actually didn't know if that was normal or not, but after reading I guess it is.
I would prefer if it didn't do that because it takes away from the engine and induction noise but its not too bad.
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2023 BG G80 ///M3 COMP XDRIVE
Dinan CF Intake | Valvetronic SS Full Exhaust | AST Adjustable Springs | UNIT 17 Front Splitter | UNIT 17 Sideskirts | BC Forged HSC21 Wheels 20x10 et12 / 20x11 et12
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