K&N 08-09 Yamaha YXR700 Rhino FI Aircharger Performance IntakeThe K&N 63 1121 AirCharger air intake system replaces the restrictive factory air filter and air intake housing in some Yamaha YXR700 RHINO FI models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your 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 1121 air