Thread: BPM vs. ESS
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      02-19-2013, 03:42 PM   #33
FogCityM3
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Drives: M3 (E90) & Shelby GT350R
Join Date: Feb 2012
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Sti, forgetting about the tune, your smaller/lighter wheels and free air filter should give you a theoretical advantage, but we'll see if that's the case in the stock for stock (pre tune flash) comparos.

On the "different driver" question..why not just switch cars both before and after and see if results are similar.