K&N 04-08 5.4L F-150 Generation II FIPK Intake System


You’ll add 15.47 HP @ 4700 RPM Dyno-Tested HP over a stock air intake! Restriction can exist BETWEEN an air filter and the engine reducing the benefit of a K&N Air Filter alone. 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.

K&N's Generation II FIPK® Intake installs in minutes with simple hand tools, and utilizes K&N's High Performance "Street-Legal" Air Filtration Systems for maximum airflow and superior filtration.

K&N Premium air filter (reusable)
K&N Chrome Plated inlet pipe
K&N air dam with weather seal
10 Year/Million Mile Limited Warranty
Mountings hardware/reusable gasket
Emission Legal in all 50 US States.
Easy 30 minute installation
Everything needed to do the job right

Add to Cart:

  • Model: KN-57-2556

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