
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
- Fuel Injection Performance Kit
- 2003-04 4Runner 4.7L
K&N 599-57-9022 Features:
- The Best-Filtering, Best-Flowing, Street-Legal, High-Performance Air Filtration System
- Guaranteed HP & acceleration gains
- Reusable/washable air filter
- Designed to specific vehicle
- Typically installs in 90 minutes or less
- Uses factory holes and mounting points whenever possible
- Works with OE computer systems
- Most are CARB exempt
- Up to 100,000 miles before service is required (depending on driving conditions)
- Million Mile Limited Warranty replaces filter & air box
The 57 Series Gen II Air Intake Kit (FIPK) is available for many vehicles and represents a dramatic improvement over the use of a K&N OE replacement filter alone. Kits use nonmetallic rotationally-molded tubes that can reduce air temperature and sound compared to metal tubes. The weakest link in the airflow chain robs a vehicle of its natural horsepower, and often that link is the factory air path to an engine. Restriction can exist between air filters and engines. These kits virtually eliminate air path restriction by replacing both the air filter and air path. Aerodynamically-engineered tubes force a massive amount of air into the engine, which equals power.
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