Jul 10, 2012 #1 N Nick1857 Junior Member Joined Jul 5, 2012 Posts 4 Reaction score 0 Hello, I ordered a Hahn Racecraft downpipe and it's coming in today. I was wondering if i had it installed to my stock exhaust for now, would it require a tune asap? Would i be able to wait a week or two before the tune?
Hello, I ordered a Hahn Racecraft downpipe and it's coming in today. I was wondering if i had it installed to my stock exhaust for now, would it require a tune asap? Would i be able to wait a week or two before the tune?
Jul 10, 2012 #2 B BankDude Full Access Member Joined Sep 29, 2010 Posts 384 Reaction score 0 No you don't need a tune
Jul 11, 2012 #3 Tuner923 Full Access Member Joined Jul 20, 2009 Posts 4,466 Reaction score 0 Location Norristown, PA depends, it might set a check engine code.
