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      05-25-2012, 06:54 AM   #22
n54dragon
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Drives: 2008 335xi
Join Date: May 2012
Location: New York

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All, thanks much for the worthwhile input. The plan is just this... Have an appt at dealer next week for warranty work. Low boost is the priority to fix. Seems like I am outta luck on a tune so will be looking into 1 after my appt. Goal is to get this thing running at the factory 8-9psi of boost, then start from square 1 with a tune.

Given that I am broke, the JB system looks most economical. Is there a huge performance diff between the JB+ stage 2 and JB4 stage 3? Can I run a JB4 stage 3 without an exhaust mod? Kinda liking the $ of a JB+ stage 2, but not sure if I will regret not spending the extra 200 clams.
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