So i Have a 2006 mustang gt and I want to upgrade my current m90 roush charger to a whipple Intercooled Twin Screw! My car has an automatic Transmission so cant find a whole lot of Whipple superchargers. I only find 2.3L Whipple superchargers for my year?Is there any whipple supercharger like a 2.9L that will fit my automatic s197?