With the K&N FIPK Gen II system, the air filter is positioned behind a K&N heat shield, allowing it to draw more air than the constrictive factory airbox. Also, the system is designed to reduce intake ...
With suspension and big tires in place on a 4x4, available horsepower and torque begin to wane. While lower axle gears will help restore some of the lost engine performance, many simply get used to ...