Add 13 + Horsepower to Toyota 4Runner with K&N

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The 4th generation Toyota 4Runner is a very sophisticated piece of engineering. In 2003, its look went athletic and larger. There is more front and rear legroom, more headroom and 2 inches more shoulder and hip room. It can easily fit five passengers.

AirCharger Air Intake for 2003 and 2004 Toyota 4Runner
AirCharger Air Intake for 2003 and 2004 Toyota 4Runner
K&N Engineering, Inc. has made a 63 Series AirCharger Intake Kit (63-9022) for the 2003 and 2004 Toyota 4Runner 4.7L V8. The K&N Typhoon Kit was specially designed to fit in the engine of the Toyota. ""We hand build these tubes," said K&N Performance Kit Technical Development Supervisor Kirk Swanson. "We shape it to hand form it for our dyno to get the best power." The heat shield on 63-9022 fits easily in the inner fender well.

K&N dyno test have shown a horsepower gain of 13.53 at 5012 RPM with the 63-9022 Intake Kit. K&N's (63-9022) rotationally molded polyethylene Intake Kit uses a Round Tapered Universal Chrome Top Air Filter (RC-5100) that can fit into the engine compartment using factory holes and mounting points. "There is a hole midway on the tube to accommodate a factory hose," said Swanson.

Power Gain Chart for Toyota 4Runner with K&N Air Intake
Power Gain Chart for Toyota 4Runner with K&N Air Intake
It takes less than an hour to install this kit and the lifetime K&N Air Filter performs for up to 100,000 miles before service is required depending on driving conditions.

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

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K&N Engineering, Inc. of Riverside, California, is the inventor and leading innovator of High Flow Technology and Lifetime Air Filters for automotive applications. K&N has been manufacturing our exclusive line of Lifetime air filters in Riverside California for more than 37 years. K&N continues to lead the way in pioneering new and innovative technologies designed to allow your engine to get all the air it needs to perform its very best. K&N Engineering, now a truly global company with offices in the U.K. and the Netherlands, continues to exist as a family owned business with an enthusiast mindset and a direct connection with motor sports that carries over throughout all levels of management and manufacturing. Today, K&N exists as both the sales and brand leader for performance filters, and maintains a stocking catalogue of over 3,500 part numbers, including an extensive line of factory replacement Lifetime Air Filters, Performance Air intake Systems, and Wrench-Off oil filters. For more information about K&N Filters, please contact K&N Engineering, Inc., P.O. Box 1329, Riverside, CA 92502-1329, (800) 213-4182 for a dealer near you, (800) 858-3333 for technical service/questions, (951) 826-4001 Fax, e-mail, or visit