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      12-03-2012, 09:39 PM   #35
nicknaz
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Drives: 2012 Z4 35i
Join Date: May 2008
Location: San Diego CA

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Quote:
Originally Posted by stickshifter69 View Post
35i is just as fast as the 35is with software tune. Same engine. I've read rumors about the 35is becoming extinct for an M35i....
I just check on real oem and the 35is is classified as N54T and the 35i is N54

http://www.n54tech.com/forums/showthread.php?t=10605

Check out the bottom of that first post with default jb4 settings for "regular n54" and "1m/335is" (N54T)

The boost targets are higher and start at the peak boost at lower rpm.

It is all speculation unless cars are raced heads up but I wouldn't be surprised if the 35is was quicker than 35i (stock and with tune)