Another primary difference is that the Stage one kit includes one 92mm GT500 throttle system, though the Stage 2 kit comes with the billet 112mm round throttle entire body (which employs GT500 electronics) that we talked over earlier. *Discounts on parts from your maker or aftermarket. "We hardly ever shell https://griffinguzon.ampblogs.com/details-fiction-and-whipple-supercharger-2017-mustang-gt-61399587