The 2015-2017 Shelby GT350 ProCharger Stage II complete kit is ready to go with tuning and fuel upgrades included. The Procharger P-1SC-1 supercharger makes a safe 6 psi of boost. Head units ranging from P-1SC-1 to F-1A-94 are available and thanks to our efficient compressor designs, you can achieve large horsepower and torque gains across the entire rpm range with maximum reliability and everyday drivability.   Stage II Complete System: Dedicated drive system Self-contained supercharger for increased drivability Optional helical gearset for noise reduction Extra capacity air-to-air intercooler  The ProCharger GT350 Mustang supercharger system comes 100% complete with a robust CNC billet bracket design, 8-rib dedicated drive, SFI-approved aftermarket balancer, handheld programmer, 95lb (1000cc) injectors, fuel pump booster, and a highly effective air-to-air intercooler designed specifically for the GT350 capable of 1,200+ HP. The bolt-on installation is easy with standard hand tools and a floor jack, with no permanent modifications, no motor mount changes, no trimming/cutting, and no bending of any factory parts–not to mention OEM-style fit and finish.  Features Complete kit includes fuel and tuning upgrades Dedicated 8-rib drive system for maximum belt wrap Innovaters West SFI Balancer The belt can be changed without removing the supercharger Pulleys can be changed without removing supercharger Fits under stock hood – retains new 5.0 engine cover Supercharger air inlet faces forward for cool fresh air No trimming to factory components No cutting of radiator hoses No cutting or modifications to cooling fan 100% reversible back to stock  These ProCharger systems also give GT350 owners multiple options in both the performance and appearance arenas, with your choice of polished, satin, or black finish for both the brackets and head unit. As well as multiple intercooler sizes to best fit the HP level of the customer.  Installation of this system is the easiest of any Mustang supercharger system to date. With a suggested installation time of around 5 hours, a customer can install this system in his/her garage with common hand tools, in an afternoon. And for the collector/leased owner in mind, the HO system is 100% reversible, with no trimming or cutting to any factory O.E.M plastics or hardware.