[go_a_way1]

Originally Posted by BRZach

Hello all,

I feel this has been somewhat talked about, (yes I searched), but I would like to get someones opinion who has credibility. I received a Gruppe-S header and am anxious to install it, for obvious reasons. Unfortunately I don't have money to tune it until I sell a few parts, and so I was wondering how harmful would it be to run the UEL without a tune for about a month or so? I wouldnt beat on it, rather just enjoy the new sounds since the AFR's wont be ideal. Then tune and have lots of fun when I can.

Anyway, I'm sure I'll get somewhat roasted, but hell, Im excited like anyone would be.

Thanks!

Only thing you will harm is the environment haha. Stock tune is safe but does run really rich and that may make it run even richer. I wouldn't worry about it you just may get a little black on your tail pipes. You won't see much performance gain until you tune though and will have a CEL.