Trymygt
Junior Member
I have a 2011 GT wit a 150 shot on it cai and 355 gear on my stock tires the car wit 11.6 and 125 it was tune by alternative performance i plan on taking it to brenspeed let them retune the car but i was wondering does anyone know how much you can spray at this new 5 liter motor and still get atleat 3 summers out of it? I also plan on goin back to a 315 gear. and will the car run better on 18's or 20's?