I did it. didnt notice a huge difference. its a bit louder, but nothing much different. if i feel motivated, ill probably just buy a new one for $15 i think to replace the one i cut up. Honestly, the engineers at BMW are intelligent people, but idk if its purpose it to resonate with valve movements or damp intake noise.
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2007 TiAg 328xi: AA Tune, AFE intake, Full exhaust, 335xi Brakes, H&R RSB, UUC FSB, H&R Sports, Billy Sports...BBS SR 17x8
1985 Gazelle Beige 325e: Poly everything, e24 3.25 LSD, 225 lb weight reduction, Corbeau FX1, Shifter machined by me, roll bar, harness, all the other goodies. My "Racecar"...15x7 BBS RA
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