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      12-10-2012, 06:49 AM   #19
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Drives: 07335i
Join Date: Dec 2008
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Originally Posted by madmanhiker View Post
I'm stuck at 390 FBO with meth and race gas. Will the ISO help those of us in this config??? I just want to crack 400..... grrrr.....
I think it's a must do for all N55s but especially heavily FBO ones. Plus, it's free!

Mike is offline   Canada
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