K&N 57-3021-1 1999-2004 GMC Sierra and Chevrolet Silverado 5.3L 4.8L cold air intake.
Provides 9.11 horsepower gain at 5352 rpm.
The K&N 57 Series Gen II Air Intake Kits (FIPK's) represent a dramatic improvement over a K&N O/E replacement filter alone.
They use only non-metallic rotationally molded tubes that can reduce air temperature and decrease intake sound over a metal tube.
Restriction can exist BETWEEN an air filter and the engine reducing the benefit of a K&N Air Filter. The weakest link in the airflow “chain” robs a vehicle of its natural horsepower. Often that weak point is the factory air path leading to the Engine.
K&N Air Intake Kits virtually eliminate air path restriction by replacing the air filter and the entire air path to the engine.
The aerodynamically engineered tube drives a massive amount of air into an engine, which translates into POWER.
Guaranteed to Provide more HP and Increased Acceleration
Engineered to Specific Vehicle Design
Easy to Install, Usually in 90 minutes or less!
Lasts up to 100,000 Miles Before Service is Required (depending on driving conditions)
Million Mile Limited Warranty
Replaces OEM Filter and Air Box
Air Filter is Washable and Reusable
Works with Original Equipment Manufacturer Computer Systems
Designed to use Factory Holes & Mounting Points Whenever Possible
CARB Exempt and street legal in all 50 US States
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