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      12-10-2012, 12:53 PM   #2
First Lieutenant
E93Blackhawk's Avatar
United Kingdom

Drives: 2008 335i M sport
Join Date: Oct 2011
Location: London

iTrader: (0)

I think its 2.5" piping?

The e92 as far as I'm aware has no resonator.

Never really got under my car to have a look at the OEM setup, but as far as i can see, the primary cats are at the top, then you have a x pipe sort of, more piping then to the muffler.

Heres a guy selling his setup, but can someone advise me weather the pieces on the left are the primaries and in the middle are those the secondaries?

thanks guys.