N55 Spark plugs and maintenance
View Single Post
01-09-2013, 08:32 PM
Drives: 2011 135i 6mt, 2008 Vette 6mt
Join Date: Aug 2010
Location: Lone Star State
I changed mine at 23k miles, was having a misfire after installing Cobb S1 Aggressive.
I had run Dinnan S2 for about 12k miles before i went to Cobb.
Misfire is now gone!
View Public Profile
Find More Posts by Suds