Hello everyone. This is my first post. I have a 2007 Mustang GT with Stage 1 Roush kit. (Stage 1 only adds rims/tires/ground effects etc...no motor stuff) I have a CAI/Tune, Flowmaster muffler, lowering kit, upper and lower control arms, panhard bar, short throw shifter. It has 275/40/18 rims +...