savage

will going from 315/30/18 to 315/40/18's on the rear of my c7 non z51 give me more (bite) forward grip? f.y.i. im useing aftermarket c5 zo6 18x10.5 wheels on all fours, they worked well with my 2002 and 2008 with the 315/30/18 hoosier a6 tires(front and back) but this car spins them to easy and all the time!!

UrbanKnight

What pressures are you running?

I'm running 345 a6's on my grand sport, and they only spin if I want them too.... My happy pressure seems to be 32#'s hot

savage

i never let them get higher than 26lbs, long story short-i knew better, thank you