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      06-25-2013, 03:24 PM   #12
Lieutenant General
swamp2's Avatar

Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

iTrader: (1)

There is not much a diff does when considering any sort of performance across multiple gears. Remember, a final drive change does not give you more power and power gains equate to performance gains. This topic has been extensively debated here on the forum. The essence of the "no such thing as a free lunch" principle with such a mod is that yes, you get more torque to the rear wheels, however, you get less time in each gear. Google around for the various discussions. In my opinion the benefits are not at all worth the price.