K&N Cold Air Intakes are Guaranteed to Increase Horsepower While Protecting Your Engine

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K&N air intake systems are measured and 100% guaranteed to increase horsepower.  We built our first air intake in 1992 and we haven't looked back since.  K&N currently manufactures over 500 different air intakes, commonly referred to as cool or cold air intakes, and our team of engineers is dedicated to designing, and building the best air intakes available.
K&N Cold Air Intake System
K&N Cold Air Intake System

Restriction in airflow can exist between an air filter and the engine reducing the benefit of our high flow air filter. The weakest link in the "airflow chain" robs a vehicle of its natural horsepower. Often that weak point is the factory air path leading to the engine. K&N cold air intake systems virtually eliminate air path restriction by replacing the entire air path to the engine with an aerodynamically engineered intake tube that drives a massive amount of air into an engine.

Our cold air intakes are built to increase horsepower. If we can't increase a vehicle's horsepower we won't build a system for it. It is that simple.  Our horsepower results are not based on the single biggest gain from one particular vehicle but are an average of runs and vehicles.  Examples of horsepower gains for several popular vehicles are below.

2004 to 2008 Ford F-150 Cold Air Intake System
2004 to 2008
Ford F-150
Cold Air Intake System

2004, 2005, 2006 and 2007 Ford F-150 trucks with the 5.4 liter engine use K&N's 57-2556 air intake for a gain of 15.47 horsepower @ 3829 rpm.

Owners of 2004 to 2008 Ford F150 pickups with a 5.4 liter engine may also choose K&N's polished aluminum cold air intake kit 77-2556KP.  The 77-2556KP gets 9.53 more horsepower @ 3725 rpm.

2003, 2004, 2005, 2006 and 2007 Honda Accord models with a 3.0 liter V6 engine use K&N's complete cold air intake part number 69-1207TP or 69-1207TR. These cool air intakes show a gain of 10.4 horsepower @ 5522 rpm.
2003 to 2007 Honda Accord Cold Air Intake System
2003 to 2007 Honda Accord
Cold Air Intake System


2007 and 2008 Chevy Silverado 1500 Cold Air Intake System
2007 and 2008
Chevy Silverado 1500
Cold Air Intake System

2007 Chevy Silverado 1500 pickups with a 6.0 liter engine gain 17.54 horsepower @ 4917 rpm with the 57-3058 cool air intake. The 57-3058 is designed with a non-metallic rotationally molded intake tube that can reduce intake air temperature and decrease intake sound over a metal tube.

K&N's 77-3058KP will fit 2007 and 2008 Chevy Silverado 1500 models with the 6.0 liter engine. This polished aluminum intake system uses an aluminum intake tube to smooth and straighten air flow to your engine. The 77-3058KP gains 12.49 horsepower @ 4917 rpm.
K&N Cold Air Intake Dyno
K&N Cold Air Intake Dyno for a 2004 Chevy 2500

All K&N cold air intakes begin with "The World's Best Air Filter".  We apply our high-flow technology to a large conical open element air filter, providing more surface area for a huge increase in airflow. The oversize air filter captures and holds more dirt to protect your engine from damage.

To find a K&N cold air intake system for your vehicle or to view specific horsepower gains for your vehicle use the K&N application search on

K&N Performance Air Filters

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K&N Engineering, Inc., with headquarters in Riverside, California, has been the world's leader in performance filter technology since 1969, serving the needs of the automotive, motorcycle, marine, industrial and military markets. K&N is heavily involved in nearly every form of motorsports from off-road and powersports to drag racing, stock cars and road racing. 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