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      12-15-2012, 07:36 PM   #6
518N55
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Drives: 2011 335i coupe
Join Date: Mar 2012
Location: Upstate NY

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For me it was very noticeable. I spool up faster. Boost targets are hit more precisely. Boost curve is much smoother and my timing looks sport on.

19.4psi is the highest I ever saw a log go pre ISO. With ISO i haven't pushed it over 18 since I am on snows now and it just gets a little hairy. I think you should go do a few logs. Start at map5 with no meth... then go +4 ad and work up... compare to your old ones.

For me the best improvement is the way the turbo will initially respond when you go WOT. Hard, smooth, and accurate.