63-9023 63 Series AirCharger High-Flow Intake Kit 2008-2003 Toyota 4Runner 4.0L

Name: 63-9023 63 Series AirCharger High-Flow Intake Kit 2008-2003 Toyota 4Runner 4.0L
Brand: K&N
SKU: 599-63-9023
Price: 367.99 USD
Availability: InStock

^$367⁹⁹

4 left in stock

Ships on Sep 14, 2026

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Toyota

63 Series AirCharger High-Flow Intake Kit

2008-2003 Toyota 4Runner 4.0L

+9.23 HP Increase

Guaranteed horsepower gain
Designed to improve throttle response and engine sound
Free-flowing high density polyethylene tube
Replaces entire factory air intake system
K&N Million Mile Limited Warranty
Lasts up to 100,000 miles before service is required (depending on driving conditions)
Easy to install, usually in 90 minutes or less

More Airflow Improves Engine Performance

K&N 63 Series AirCharger Air Intake Systems will reduce air intake restrictions and improve airflow over factory air filter assemblies. Air is directed through an aerodynamic intake tube into the throttle body to produce guaranteed increases in power and acceleration throughout the engine's RPM range. The intake tube accommodates the factory air temperature sensor, and each kit includes an oversized cone-shaped air filter lasting up to 100,000 miles. Installation is quick and easy using your vehicle's existing factory mounting points.

Part TypeAir Intake Kit

Product LineK&N 63 Series AirCharger High-Flow Air Intake Kits

BrandK&N

Package Height12.4

Package Width12.5

Package Length18.5

Weight9.95 PG

Weight10.9 lb (5 kg)

Part CategoryPerformance Parts

Estimated Horsepower Gain9.23 HP @ 5388 RPM

Estimated Horse Power Gain9.23 HP @ 5388 RPM

Intake Pipe MaterialHigh-Density Cross-Linked Polyethylene