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      07-26-2009, 10:14 PM   #11
richard in NC
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Drives: 2009 Z4 35i
Join Date: Jul 2009
Location: Charlotte, NC

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Wow. But it still is nice gains. 50+ RWHP thru the mid range isn't too shabby. Would one need a different intake or exhaust along with the tuning, or is it all in SW controlled boost levels?

Would BMW discover the tune during routine maintenance? If a car is a lease, is it easy to pull the tune back out before the lease-end?
Appreciate 0