More Meat?
Still have the tune from the old set up..forget about putting the hammer down in first and second...spins pretty good on the 2 to 3 shift and even on the 3 to 4 shift. (I thought maybe clutch slippage..till I felt the rear wiggle?)
I have the OEM sized 285/40/17 in the rear..would a 315/30/18 make a difference?
Looking at these wheels 17x9.5" and 18x10.5"





