Supercharge your 2005-2009 4.6 3 Valve Mustang GT to 550 horsepower and 12 lbs of boost. The Series VI Supercharger employs a unique inverse design and open bends coupled with twin screw blower assembly, pushes air directly into the combustion chamber. It is compact, lightweight and highly efficient, the blower housing, assembly and intercooler in one compact unit nestles neatly in the valley between the heads. The runners on the supercharger are honed for improved airflow to the cylinders increasing horsepower. This kit includes a smaller pulley 2.875" E-Pully and comes with colder HT0 spark plugs, Exteme duel fuel pump system and SCT Xcalibrator II tune by Saleen Speed Lab. The runners on supercharger are honed. Stage 3 strongely suggest that you have this tune checked by a local dyno shop.
