Mustang S650 GT G3 Tuner Kit (Wholesale Direct) COMING SOON! The intercooled ESS Tuning S650 GT 5.0 supercharger system is the culmination of over 30 years of forced induction experience. The G3 supercharger has a max capacity of 1600CFM, and is ideal for the Coyote application in power ranges... MSRP: Now: $6,495.00 Compare Selected