ive herd of people making close same numbers on the red as the black and ive know 2 people to have the same issues with the black seizing up on them. If you want fun street car with out the lag go red but if you want more power up top keep the 6262 or go 3582 ive seen people make same amount power on the 6262 with less boost than the 3582 but your call. I think your car was nasty when tuned on the e85 making 615 on only 33psi thats why i went 6262.