Toyota 4Runner Cold Air Intake

• Guaranteed to improve acceleration and power
• Specifically designed to fit your vehicle's engine compartment
• Simple installation, typically in less than 90 minutes
• Washable & reusable air filter lasts up to 100,000 miles before needing service
• Backed by the legendary K&N Million Mile Warranty
• Street legal in most states (not approved for use in California - please check part details or call for more information)

Improve throttle response and power in your vehicle with a K&N 63 Series AirCharger high-performance cold air intake. These high-flow intake kits provide better air flow to your motor by replacing the factory air path with a larger diameter polyethylene tube. This charge of fresh air allows your motor to breathe better and immediately put out more power!

All 63 Series AirCharger high-flow intakes include the largest conical high-performance filter that will fit in your engine compartment and still use OE holes and mounting points. The bigger filter surface area also allows more air to flow into the engine and captures more dirt, boosting service intervals up to up to 100,000 miles.

Note: Some K&N 63 Series AirCharger systems won't not fit on applications with lift kits.

• Up to 75% improved airflow
• Improved throttle response, acceleration and fuel efficiency
• Up to 60 ft./lbs. more torque! Up to 50 HP gains!
• Includes either aFe Pro Dry S or Pro 5R oil-free filter - the easiest to service!
• Works with all stock electronics
• Easy installation with no cutting or drilling
• Heavy-duty 16 gauge steel air box
• Reusable, washable filter

aFe MagnumForce Stage 2 cold air kits replace the factory intake hose, air box and filter with the largest possible parts while still retaining the factory mounts. The larger intake hose, air box and huge aFe air filter provide more fresh, cold air to your motor which creates more power. Also comes with the largest aFe filter possible inside the new air box. aFe filters are easier to service than oil-impregnated or foam filters - simply tap it, vacuum it or wash it with soap and water to clean. Comes with limited lifetime warranty.

Fits the following 2003-2009 Toyota 4Runner submodels:

• 2003-2009: Limited; 6 Cyl 4.0L;
• 2003-2009: SR5; 6 Cyl 4.0L;

• 2003-2009: Sport; 6 Cyl 4.0L;

Fits 1 more submodels. (Show all) Show less info

• Up to 99 percent filtration efficiency
• Provides additional power up to 26.6 h.p. at 5750 RPM and 24.3 lb.-ft. of torque at 5750 RPM
• Provides more power throughout the vehicle's full RPM range using mandrel-bent piping and reusable high flowing air filter

• Heat shield
• Intake tube
• Premium red air filter
• All necessary hardware for easy installation

• Cotton gauze filter material
• Oiled filter element
• Without heat shield
• Black tube finish
• Plastic tube material

• Washable and reusable air filter
• Made in U.S.A.

• Product legal for sale in California under Executive Order (EO) number D-609-6. Before purchasing this product, please check the Executive Order at www.arb.ca.gov to verify whether this product is allowed for installation on your specific vehicle application.

• Synthetic filter material
• Dry filter element
• With heat shield
• Silver tube finish
• T-6063 aluminum tube material

• Up to 99.52% filtration efficiency
• Mandrel-bent tubing
• Washable and reusable air filter
• Manufactured and assembled in the U.S.A.

• Product legal for sale in California under Executive Order (EO) number D-670. Before purchasing this product, please check the Executive Order at www.arb.ca.gov to verify whether this product is allowed for installation on your specific vehicle application.

• Cotton gauze filter material
• Oiled filter element
• With heat shield
• Black tube finish
• 6061 T-6 aluminum tube material

• Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states
• Fine-tuned for specific applications

• Cotton gauze filter material
• Oiled filter element
• With heat shield
• Polished tube finish
• Aluminum tube material

• Washable and reusable air filter

• Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states