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Description
This K&N cold air intake system is engineered for your 4Runner L4-2.4L. A high-density polyethylene (HDPE) rotationally molded tube helps increase the volume of airflow to your engine and provides a guaranteed increase of 15.6 horsepower and 20.7 torque with no tune required. This intake system is paired with a washable, reusable High-Flow LIFETIME Air Filter™ featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom designed enclosed air box helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 60 minutes.
Fitment: 2025+ Toyota 4Runner - Gas All Models
Features
Guaranteed Increase In Horsepower & Torque: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 15.6 HP and up to 20.7 ft.lbs. of Torque
Hear The Growl: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed
Dyno Testing You Can Trust: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system
Better Towing: K&N’s cold air intake kit improves acceleration and uphill performance when towing by improving throttle response and overall horsepower and torque
Featuring K&N’s Signature, Reusable Air Filter: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles
Durable Roto-Molded Intake Tube & Custom Heat Shield: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of you
Premium Engine Protection From A Trust Brand: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle
Specs
Estimated Horsepower Gain: 15.6 HP @ 3500 RPM
Estimated Torque Gain: 20.71 lbft
Air Filter Color: Red
Air Filter Material: Cotton Gauze
Air Filter Outlet Shape: Round
Clamps Included: 6
Clamp Material: Stainless Steel
Clamp Style: Regular
Couplers Included: 2
Replacement Filter: RU-1037
Product Style: 63 Series Aircharger Kits
Street Legal In All US States: Not legal for sale or use in California on any pollution controlled motor vehicle.
TUV Approved (Europe): No
Weight: 10.5 lb (4.8 kg)
Product Box Height: 15.6 in (396 mm)
Product Box Length: 24.2 in (615 mm)
Product Box Width: 20.2 in (513 mm)
California Restricted: Not legal for sale or use in California
Special Notes
Warranty
No-Hassle Lifetime Limited Warranty