ok, so i am doing the pi intake now. its a 96 gt, BUT it aready has a npi intake with the aluminum X-over. so what i was told is that i can take the X-over from mine and bolt it to the pi intake. and i guess i aready have the alt bracket. i have the intake gaskets. i have the new 180 thermostat. so what i am asking is if i still have to buy a heater core coolant tube and a waterpump nipple and o ring? or if my stuff will work because i have an aluminum X-over npi on it now. what do i need