B bigyzf Member Jan 11, 2008 #1 Will the non fouler method work on stock OEM exhaust? I have the P0421 code for a month now. Time for it to go.. Car runs great otherwise.
Will the non fouler method work on stock OEM exhaust? I have the P0421 code for a month now. Time for it to go.. Car runs great otherwise.
C carter1551 Member : 03 Mp5 Jan 11, 2008 #2 I don't. See why not. A non fouler has nothing to do with what type of exhaust you have
