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      04-02-2011, 11:15 AM   #31
First Lieutenant

Drives: 335
Join Date: Jun 2007
Location: toronto

iTrader: (2)

Originally Posted by Sloppy View Post
I can honestly say that those secondary cats take 70% of the smell away! I have yet to idle my car in a drive through and actually smell something. I would idle my car in the garage with the same smell as it was catted.

Frankie, I have the exact stock exhaust as a n54 it seems so it should fit yours.
do you have the whole n54 exhaust? mufflers and piping?

where are the cats located on the n54?

I like this option, as opposed to catting the downpipe
2011 E90 AW
2010 E550 4 Matic
2010 RDX