The Roller Rocker Supercharger System by Magnuson Superchargers for the 2010-present 4Runner and 2010-2014 FJ Cruiser supercharger system is now CARB approved.
At around 6 PSI the kit gives customers 30 percent increase over stock on horsepower, and a 28 percent increase in torque, according ot Magnuson. The supercharger system is a positive displacement, roots style kit, utilizing Eaton’s lightweight TVS rotors.