get the BMC, get the cold air intake, 10 degrees to your air intake can reduce your power a fair bit. cars on the R&R will start off at 280 and then after a few runs be at 260, just becuase of the heat soak... these engines get super duper hot, i can't stress how important it is to get that cold air in there, the heat soak is real m8, high intake temps increase cylinder temps, leading to detotation, high oil tempertures and additional heat in the engine bay, since this winter is going to be hella cold, i would expect vr6's with CAI's to make good runs on the R&R , -4 expected tommorow