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      04-08-2009, 03:11 PM   #42
aznbenz07
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Drives: 08 Evolution x gsr, 2007 328xi
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Quote:
Originally Posted by Evolved View Post
A tune doesn't change the cars gearing.

And if I cared about gas mileage I would have bought a prius.
It doesn't change gearing but before the tune I achieved peak boost at 5k rpm therefore that's where I shifted because my boost would taper down by 7k rpm. Now, after the tune my peak boost hits at 5k but doesn't taper down by 7k, It's still pumping out boost and power up until 7.5k so I can shift at 7k rpm. You understand?
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