Intake, exhaust, and chip....and thats about as much HP for a while. You think if I purchase a ATS with the 5star torque converter and upgraded flexplate that i would NEED to change the input shaft to billet? Its expensive. You think the tranny would be fine without that upgrade? I dont pull anything and its my everyday driver. Maybe an occasional race or 2

 

I just had mine upgraded. Chris at Relentless said a stock TC can break an input.