K&N 05-08 Toyota 4Runner V8-4.7L Aircharger Performance IntakeThe K&N AirCharger 63 9029 air intake system replaces the restrictive factory air filter and air intake housing in some Toyota 4Runner models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your 4Runner's engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The 63 9029 air