Anyone's N52 have secondary cats?
View Single Post
06-27-2011, 04:53 PM
Drives: 2011 128i 6MT, sport pack
Join Date: May 2011
Location: Lansing, MI
I'm bummed that my car has the secondary cats but no 3-stage intake. My engine is clearly marked as an N52B30AE. Why would it have the extra cats?
View Public Profile
Find More Posts by NA_Villhauser