Planning on putting m/t street radials II on my 2011 GT . I am now pushing 677 HP with 575 tq. It is a 6 speed stick with 3:73 gears. The size I am thinking of are 305/35-18 . Has anyone ran these and have they had any tire rub problems. How low can I go on tire pressure on
The street. I need all the bite I can get. Car only weighs 3400 lbs.