K&N 02-04 Chevy Avalanche V8-5.3L Performance Intake KitThe K&N 57 3033 FIPK air intake system replaces the restrictive factory air filter and air intake housing in some Chevrolet Avalanche 1500 models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your Avalanche 1500'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