M Performance Exhaust Impact on Performance
View Single Post
02-05-2013, 10:44 AM
Drives: 2012 Havana F30 335i 6MT
Join Date: Mar 2009
2012 F30 335i
Originally Posted by
I have both the GT HFC downpipe and performance exhaust. No CEL issue for me.
There are a few posters in the GT downpipe thread reporting codes thrown though.
View Public Profile
Find More Posts by Balzz