The other main variance would be that the Stage 1 kit comes along with just one 92mm GT500 throttle system, whilst the Stage two kit comes with the billet 112mm spherical throttle body (which works by using GT500 electronics) that we discussed previously. Fits under the inventory hood. Meant to https://pinballmachinesforsale47924.blog-ezine.com/24988250/what-does-whipple-supercharger-ford-mustang-mean