Give your 4Runner or FJCruiser the power of a V8 with the Magnuson Roller Rocker Supercharger system! This complete system includes everything you need from the hardware and accessories to the Magnuson calibration for the ECU. Engineered specifically for the 1GR-FE 4.0L 6, this system delivers 30% more horsepower than stock and with an additional 28% more torque output at just 6psi of boost. To put that in numbers - for the baseline 259hp/271lb-ft (194kW/367Nu22c5m) the u201911 FJ puts to the crank, that means you can expect a meaty 336.7hp and 346.88lb-ft at the crank - a gain of 77hp and 75lb-ft to give you that extra oomph.

Magnuson's roots type positive displacement supercharger is a direct bolt on for the 1GR-FE. Simple enough for an enthusiast to bolt on in a weekend, this system is CARB EO approved and 50 state legal.

Built in the USA using Eaton 2019s lightweight TVS rotors, each Roller Rocker Supercharger system is cast and assembled as a single unit, which beautifully marries intake manifold to the supercharger for seamless integration. Its all in one design looks great, yet also looks and fits like it belongs there, itu2019s acoustically tuned to be quiet when not wide-open-throttle. The system is fully sealed- no oil to change or extra maintenance.

To give you the most oomph where you need it, we designed a system with excellent low-end power, because off-road, you need that power down LOW, not just the peak- and thatu2019s exactly what you get with Magnuson Roller Rocker Supercharger system. This system also features high volume air charge cooling to keep heat soak at bay, so those 77 extra ponies -stay- at your command from startup to shutdown. Offering OEM-like reliability, MPG and road manners, you get V8 power with the same peace of mind you had stock.