Achieve instantaneous throttle response and tremendous midrange torque by installing a Jackson Racing supercharger system. This easy-to-install, high quality system bolts on in a matter of hours and fits completely under the hood with no permanent modifications to the vehicle required. In real numbers, on an otherwise stock engine, horsepower is increased 45% from 130 HP to 189 HP and torque goes from 135 ft./lbs. at 4500 RPM to 158 ft./lbs. available at 6,000 RPM. This huge increase is usable low-end and mid-range torque due to positive displacement design of the belt-driven Eaton Gen III 45 cu. in. roots-style supercharger. A great installation for Focus enthusiasts looking for a substantial increase in horsepower and torque.