I've seen many positive comments on the performance of the MP 4S. Considering BMW spec'd cup twos for the M3CS but shod it with MPSS for the U.S. market (supposedly for safety reasons) why did they not put the MP 4s on it. Has to be a reason I would think. Once my MPSS are gone I will seriously consider them.
My CS is not my daily but there is still a chance I could get caught in the rain. That and I can't stand hearing small gravel kicked up into the fender wells makes me shy away from R compound.
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