BMW M3 Forum (E90 E92) - View Single Post - I said I was going to put cats on the....

Vic311 · 03-27-2014, 09:42 PM

In my experience secondary cats don't really reduce fumes enough to warrant using them. That said HJS are top notch cats, so please report back if they do the job.

03-27-2014, 09:42 PM	#2
Vic311 Banned 43 Rep 1,462 Posts Drives: 2011 e92 M3 Join Date: Dec 2012 Location: NY iTrader: (0)	In my experience secondary cats don't really reduce fumes enough to warrant using them. That said HJS are top notch cats, so please report back if they do the job.
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