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      03-02-2013, 09:55 PM   #122
Drives: 2011 M3 E92 ZCP
Join Date: Feb 2013
Location: Seattle

Posts: 80
iTrader: (1)

Originally Posted by first350 View Post
Not sure if there's more info on using non-foulers, but it seems to work for N55's...this is the only thread I could find, anyone else this?

Also, it looks like the OEM DP has 2 cats in it for the N55...the 2nd cat does not seem to be monitored. from pics it looks to be: turbo, primary O2, cat 1, secondary O2, cat 2. If I can find a stock dp, I may just drill out the 2nd cat...thoughts?
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