E46Fanatics - View Single Post - headers
Thread: headers
View Single Post
Old 03-10-2010, 03:05 PM   #9
Registered User
Join Date: Nov 2009
Location: Kansas City
Posts: 2,531
My Ride: E46 330i
Th reason you get the CEL is because the O2 sensors realize there is no catalytic converters. These headers have no cats so they WILL throw a code... Simple as that.
lllSupra is offline   Reply With Quote