Thread: FREE SHIP on the BEST tune for the N54 *JB4* INSTANT POWER and THROTTLE RESPONSE!!
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      11-07-2012, 05:41 PM   #8
Mike@N54Tuning.com
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Drives: 2007 335i, 2015 M3
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Quote:
Originally Posted by Goofyguy View Post
Theres no upgrade program for the G4 guys is there?
Yes there is...

http://www.n54tuning.com/index.php?_...&productId=116

Mike
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