Chibiblacksheep, I see you been a member for a while. The 3.9 is pretty quick though, last night on the I 94 interstate, I had a guy driving an 05-09 V6 mustang try me, lets just say it ain't work out too good for him. But I'm really excited about getting the SS ground effects. I ordered the rear piece with the insert already, total cost of $552!!