Ok so i have negociated a price on a comptech supercharger 1850 it is used and on a wrecked car it was hit in the rear ends so no damage to the engine or parts. Ne ways i am about to purchase it but i need to know how much everything will cost me. I have an automatic and AV6 also has one. It come with everything but i dont know about ne hidden things to those with one let me know what you know and if it has cause problems for your car. I need to know soon. All i know about is the radiator situation. Thanks to any one who can help.