gotboost3 
I've tested my MPG with and without Performance Shift on and it really is no different. However it is more fun to drive with it on, and it's better on the trans. so I leave it on all the time.
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03-03-2009
I've tested my MPG with and without Performance Shift on and it really is no different. However it is more fun to drive with it on, and it's better on the trans. so I leave it on all the time.
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