Supercharger kits are extremely popular for the 6.4L HEMI and come in many varieties from centrifugal to roots to twin-screws. The amount of horsepower that a supercharger can add to a 6.4L HEMI ...

Roush’s new supercharger kit will add up to 330 horsepower and 195 pound-feet of torque. Roush Performance has been upgrading Mustangs and selling parts for the pony car for nearly three decades.

Better hurry, though, as ProCharger Superchargers says this special 60/30 Kit that celebrates 60 years of Mustang and the company's 30th anniversary has limited availability through February 15 ...