large catback rattle fix

scrllock · 12-16-2018, 02:05 AM

I've got the 3.5" Corsa catback on my '11 335xi, and the rattle from the rear chassis brace is unbearable. My shop suggested just taking the brace off entirely, but this seems like a bad idea.

Has anyone else had to deal with this lately? I've seen mention of spacers, but I can't seem to find the brace on realoem to look up the dimensions for spacers and longer bolts.

Also saw mention of M3 hardware, but not a lot of info on N55 E90 sedans on this. Would swapping the brace (or adding the arms from) for this work? https://www.ecstuning.com/b-genuine-...33326777637kt/

Welcome to NBA Jam · 12-16-2018, 03:13 PM

Yeah, removing that brace is not advisable. It's an important component for chassis stiffness. Can you identify where the brace is rattling?

12-16-2018, 02:05 AM	#1
scrllock New Member 8 Rep 23 Posts Drives: 2011 E90 Join Date: Aug 2018 Location: Michigan iTrader: (0)	large catback rattle fix I've got the 3.5" Corsa catback on my '11 335xi, and the rattle from the rear chassis brace is unbearable. My shop suggested just taking the brace off entirely, but this seems like a bad idea. Has anyone else had to deal with this lately? I've seen mention of spacers, but I can't seem to find the brace on realoem to look up the dimensions for spacers and longer bolts. Also saw mention of M3 hardware, but not a lot of info on N55 E90 sedans on this. Would swapping the brace (or adding the arms from) for this work? https://www.ecstuning.com/b-genuine-...33326777637kt/
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12-16-2018, 03:13 PM	#2
Welcome to NBA Jam Is it the shoes!? 3884 Rep 5,112 Posts Drives: (Sold) 2011 E92 335i ZMP 6MT Join Date: Mar 2014 Location: USA iTrader: (1)	Yeah, removing that brace is not advisable. It's an important component for chassis stiffness. Can you identify where the brace is rattling?
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