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The Honda CRF150F and CRF230F are Versatile Bikes for the Entire Family

The Honda CRF150F and CRF230F are both bikes geared toward family fun. Each has slightly different powerplants and wheel sizes, but each has some things very much in common. Both are great for an entry level rider, a significant other, or the seasoned veteran.

Replacement Air Filter for the 2003 to 2016 Honda CRF150F and CRF230F
Replacement Air Filter for the 2003 to 2016 Honda CRF150F and CRF230F
When you are ready to give it a little more power contact your local dealer and ask for a K&N High-Flow Filter. K&N Engineering has just released the newly designed, replacement air filter (HA-1503) for the 2003-2016 Honda CRF150F and the 2003-2016 Honda CRF230F.

K&N's HA-1503 High-Flow Air Filter is custom designed for the CRF150/230F's factory airbox. Its drop-in design means adding performance is very simple. The filter is designed to provide longer service intervals and an increase in horsepower. The HA-1503 does just that, allows for better throttle response right off the bottom and even increases top end power to boot.

The feature that should not go unnoticed on the K&N HA-1503 is its lip seal on the base. It is positioned against the backing plate and provides an optimum seal.

All K&N Replacement Air Filters are ideal for extended use in dirty and dusty conditions and are washable and reusable, providing a very easy clean up.

This filter is also covered by our K&N Off-Road Limited Warranty. All K&N Universal Air Filters and K&N Air filters sold for off-road use are warranted against defective materials or workmanship for one year from the date of purchase with no mileage limitation. This includes K&N Air Filters sold for ATV and motorcycle off-highway and/or dual purpose use.

The HA-1503 fits the following models:

2016 HONDA CRF230F 230
2016 HONDA CRF150F 150
2015 HONDA CRF230F 230
2015 HONDA CRF150F 150
2014 HONDA CRF230F 230
2014 HONDA CRF150F 150
2013 HONDA CRF230F 230
2013 HONDA CRF150F 150
2012 HONDA CRF230F 230
2012 HONDA CRF150F 150
2009 HONDA CRF230F 230
2009 HONDA CRF150F 150
2008 HONDA CRF230F 230
2008 HONDA CRF150F 150
2007 HONDA CRF230F 230
2007 HONDA CRF150F 150
2006 HONDA CRF230F 230
2006 HONDA CRF150F 150
2005 HONDA CRF230F 230
2005 HONDA CRF150F 150
2004 HONDA CRF230F 230
2004 HONDA CRF150F 150
2003 HONDA CRF230F 230
2003 HONDA CRF150F 150

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.

Add 11+ Horsepower to 2005 GMC Yukon and Denali with K&N's 57-Series FIPK

The Yukon and Denali are related, GMC's versions of General Motors SUVs also sold with Chevrolet and Cadillac nameplates. The Yukon is also the upscale sibling of the Chevrolet Tahoe and the longer Yukon XL is a re-trimmed Chevy Suburban. Denali and XL Denali are the luxury versions of Yukon; and Cadillac's Escalade is another member of the SUV family.

Air Intake for the GMC Yukon, Denali, Sierra, Chevy Taho, Suburban, Silverado, Avalanche and Cadallac Escalade
Air Intake for the GMC Yukon, Denali, Sierra, Chevy Taho, Suburban, Silverado, Avalanche and Cadallac Escalade
K&N Engineering can take these brawny V8s to the next level with its ultimate performance product, a 57-Series Fuel Injection Performance Kit Gen2 (57-3050). This kit speeds up airflow by straightening the path to the engine, cooling the air and adding performance.

The 2005 GMC 1500 3.5L showed an 11.92 horsepower increase on K&N's dynamometer. The large cone shaped K&N air filter and aerodynamic tube removes much of the restriction caused by the factory intake and allows a large amount of air into the engine, this means power. The FIPK air intake comes with a Million Mile Limited Warranty.

It takes 90 minutes of less to install this FIPK and the lifetime K&N washable and reusable Air Filter performs for up to 100,000 miles before service is required (depending on driving conditions).


The applications for 57-3050 are the:
2007 GMC Sierra 1500 Classic 5.3l V8,
2007 GMC Sierra 1500 Classic 5.3l V8,
2007 GMC Sierra 1500 Classic 4.8l V8,
2007 Chevrolet Silverado Ss Classic 6.0l V8,
2007 Chevrolet Silverado 1500 Classic 5.3l V8,
2007 Chevrolet Silverado 1500 Classic 5.3l V8,
2007 Chevrolet Silverado 1500 Classic 4.8l V8,
2006 GMC Yukon Xl 1500 5.3l V8,
2006 GMC Yukon Denali Xl 6.0l V8,
2006 GMC Yukon Denali 6.0l V8,
2006 GMC Yukon 5.3l V8,
2006 GMC Yukon 5.3l V8,
2006 GMC Yukon 4.8l V8,
2006 GMC Sierra Denali 6.0l V8,
2006 GMC Sierra 1500 6.0l V8,
2006 GMC Sierra 1500 5.3l V8,
2006 GMC Sierra 1500 5.3l V8,
2006 GMC Sierra 1500 4.8l V8,
2006 Chevrolet Tahoe 5.3l V8,
2006 Chevrolet Tahoe 5.3l V8,
2006 Chevrolet Tahoe 4.8l V8,
2006 Chevrolet Suburban 1500 5.3l V8,
2006 Chevrolet Silverado Ss 6.0l V8,
2006 Chevrolet Silverado 1500 6.0l V8,
2006 Chevrolet Silverado 1500 5.3l V8,
2006 Chevrolet Silverado 1500 5.3l V8,
2006 Chevrolet Silverado 1500 4.8l V8,
2006 Chevrolet Avalanche 1500 5.3l V8,
2006 Cadillac Escalade 6.0l V8,
2005 GMC Yukon XL 1500 5.3L V8,
2005 GMC Yukon Denali XL 6.0L V8,
2005 GMC Yukon Denali 6.0 V8,
2005 GMC Yukon 5.3L V8,
2005 GMC Yukon 4.8L V8,
2005 GMC Sierra Denali 6.0L V8,
2005 Sierra 1500 5.3L V8,
2005 GMC Sierra 1500 4.8L V8,
2005 Chevrolet Tahoe 5.3L V8,
2005 Chevrolet Tahoe 4.8L V8,
2005 Chevrolet Suburban 1500 5.3L V8,
2005 Chevrolet Silverado SS 6.0L V8,
2005 Chevrolet Silverado 1500 5.3L V8,
2005 Chevrolet Silverado 1500 4.8L V8,
2005 Chevrolet Avalanche 1500 5.3L V8,
2005 Cadillac Escalade 6.0L V8,
2005 Cadillac Escalade 5.3L V8,
2007 GMC Sierra Denali Classic 6.0l V8

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.

Add 20 + Horsepower to GMC Sierra and Chevrolet Silverado Diesels with K&N's FIPK

The 2005 GMC Sierra 2500/3500 V8 diesel provides maximum functionality and capability with its many powertrain and cab configurations. Along with the 2005 Chevrolet Silverado 2500/3500 V8 diesel these are great tow vehicles.

Fuel Injection Performance Kit Gen2 for the GMC Sierra and Chevy Silverado
Fuel Injection Performance Kit Gen2 for the GMC Sierra and Chevy Silverado
K&N Engineering continues to expand its line of Generation 2, 57-Series Fuel Injection Performance Kits designed to substantially increase airflow into your truck's 6.6L V8 engine. K&N engineers tested the 2005 Chevrolet 2500HD 6.6 liter on the in-house dynamometer and results showed a 20.14 horsepower increase with the (57-3047) FIPK.

Other applications for this kit include the 2004 GMC Sierra 2500/3500 6.6L V8 diesel and the 2004 Chevrolet Silverado 2500/3500 6.6L V8 diesel.

The 57-Series Intake Kit consists of a high-flow K&N Air Filter (RC-4900) that can go up to 100,000 miles between cleanings depending on driving conditions. Cool clean air travels through K&N's specially designed intake tube to the engine for more power.

Covered by the famous K&N Million Mile Limited Warranty, the 57- Series Intake Kit is easy to install using simple hand tools in 90 minutes or less.  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.

K&N's Latest 57-Series FIPK Frees 13+ Horsepower for Pontiac GTO

The 2005 Pontiac GTO shares a drivetrain with the Chevrolet Corvette. Its V-8 6.0 liter engine provides 400 horsepower and 400 pounds-feet of torque. Take a look at our 57-3053 features video to see dyno testing in progress.

Fuel Injection Performance Kit Gen2 for the 2005 Pontiac GTO
K&N's 57-3053 Fuel Injection Performance Kit Gen2 for the 2005 Pontiac GTO
K&N Engineering has a Generation II 57-Series Fuel Injection Performance Kit (57-3053) for the midsize coupe. K&N tests have shown a 13.95 horsepower gain at 5700 RPM with this intake.

The intake, like all other K&N intakes, was engineered to work within the GTO's computer specifications while maximizing power and allowing air to flow with little restriction. "The radius filter adaptor on this is special," said K&N Engineering Performance Kit Manager Bert Heck. By replacing the Pontiac GTO's factory air intake assembly with K&N's 57-Series Fuel Injection Performance Kit the engine gets cool, dense air with less restriction.

The FIPK uses K&N's high-flow, washable and reusable air filter (RF-1048) which performs up to 100,000 miles before service is required (depending on driving conditions). Take a look at our 57-3053 installation video to see all the steps involved.

K&N's FIPK can be installed in under 90 minutes with common hand tools. Best of all FIPK's come with a Million Mile Limited Warranty.  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.

Add Power to the 2005 to 2009 Mustang V-6 with K&N Fuel Injection Performance Kit

The 2005 to 2009 Mustang V-6 is powered by a 4.0-liter, 60 degree, single-overhead-cam-engine. Many of the advanced technologies used on the V-8 are incorporated in the V-6.

Fuel Injection Performance Kit Gen2 for 2005 to 2009 Ford Mustang V-6
Fuel Injection Performance Kit Gen2 for 2005 to 2009 Ford Mustang V-6
Those opting for the V-6 model already have 202 horsepower form the 4.0. However, the power on the V-6 does not have to stop there.

K&N Engineering's Generation II 57-Series Fuel Injection Performance Kit (57-2566) replaces the factory air box, filter and intake tube. The result is more horsepower. K&N's dynamometer shows a 7.54 horsepower gain at 4996 RPM.

"The tube was squeezed down to keep the mass air happy," said K&N Performance Kit Manager Bert Heck. "We kept the car's computer within its operating perimeters for more horsepower." With the addition of the 57-Series FIPK the Mustang's engine inhales a larger volume of air than the OEM air filter assembly.

K&N's FIPK (57-2566) can be installed in 90 minutes or less with simple hand tools and lasts 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.