1999 to 2004 Mustang GT owners have had "Supercharger Envy" ever since the Cobra went with a blower for the 2003/04 model years. How to put this blower on to your GT has been a hot topic of discussion on Internet bulletin boards for years with no one really EVER offering a good solution until now. YOUR WAIT IS OVER! Your Cobra supercharger is easily bolted on top of the new manifold. We also include our complete 8-rib secondary belt drive assembly with a separate crank pulley to drive the supercharger. This is required since a stock Cobra blower will stick out too far to be driven with the accessory belt. Using a separate belt solves many problems with this swap and adds flexibility and boost options. Belt slippage is not an issue and we will offer a variety of different size nose pulleys and crank pulleys so you can choose what boost level your engine can handle. We include all hardware needed to attach the supercharger to the lower manifold, our new thermostat housing and all tubes/hoses needed to attach it, and everything to attach the separate belt drive assembly to the front cover. This kit is intended to be very budget oriented. For that reason we are not including several items you will need for a successful installation, but may already have or can purchase in good used condition. You will need the following items but they are not included in our kit. Several of them we do offer separately. - Larger fuel injectors to meet what ever HP/TQ level you achieve. We expect most who use this kit will easily achieve 350 to 400 HP, depending upon boost level so TTI suggests at least 42# injectors. - Upgraded in-tank fuel pump. - Air to water heat exchanger. - Fluid pump to transfer coolant between the intercooler core and the heat exchanger. - Fluid reservoir to allow for a place to add coolant and check fluid level. - Coolant lines, hose clamps, engine belts, etc. are not included since we do not know what you plan to use for a heat exchanger, or where you will be mounting it. - Complete intake assembly, such as a throttle body, intake tube, MAFS, and filter. - Custom computer tun