K&N Drop-In Panel Air Filter, 2008-2018 WRX & STi
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K&N Drop-In Panel Air Filter, 2008-2018 WRX & STi

Code: KN-33-2304
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$49.99

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Product Description


    FITMENTS:
    Subaru
  • 2008-2014 WRX
  • 2015 WRX
  • 2007 STi
  • 2008-2014 STi
  • 2015 STi
  • Brand: K&N
  • Manufacturer's Part Number: 33-2304
  • Primary Material: Six layer cotton glazed
  • Primary Finish: Aluminum wire mesh
  • UPC: 024844111562
  • Manufacturer's Warranty: Covered by K&N Engineering's 10 Year / 1 Million Mile Limited Warranty
  • We ship internationally! Please email us for international shipping quotes.



Manufacturer's Description:
Designed to Increase Horsepower & Acceleration
K&N Million Mile Limited Warranty
Washable and Reusable

• Will NOT Void Vehicle Warranty
• Lasts up to 50,000 miles before cleaning is required depending on driving conditions
• Emissions Legal in all 50 US States.
• Economical, a K&N Air Filter Will Last the Life of Your Automobile, Motorcycle, or ATV
• Works with Vehicle Electronics
• Environmentally Friendly

K&N Air Filters - Designed to Increase Horsepower & Acceleration

The Original High-Flow Air Filter
Since 1969 K&N Engineering has been designing, manufacturing, and enhancing High-Flow Air Filters for the automotive and motorcycle enthusiast interested in maximizing horsepower and acceleration. Since our humble beginnings we have designed and manufactured over 2,400 High-Flow Air Filters to fit most modern passenger vehicles and over 500 High-Flow Air Intake Systems to fit vehicles driven by enthusiast minded drivers. We not only have more applications than any other manufacturer of similar product, we invented the High-Flow category and the High-Flow Technology that supports it. K&N also makes thousands of racing and specialty type air filters and is the #1 Filter in NASCAR.

Engine Protection, Filtration
Anyone can flow more air. The trick is to flow more air safely. In our opinion we hit the sweet spot - an optimal blend of high air flow, filtration efficiency, durability and dust capacity. We take filtration seriously. K&N Air Filter media has been tested both in-house and by independent labs using the ISO5011 test developed by the Society of Automotive Engineers. In addition we test many of our filters both in and out of the OE airbox ensuring proper fit and function. Our goal is to design filters with the maximum possible airflow achievable while providing guaranteed engine protection.

K&N Laboratory
Testing - Laboratory and Real World
K&N uses independent laboratories to help ensure that our products meet or exceed your high performance and high filtration demands. Better yet, we conduct our own testing at our own state-of-the-art in-house testing laboratory. For more information on K&N air filters and testing go to the K&N Technical Learning Center area. K&N's dedication to providing a first-class air filter can also be seen outside the testing laboratory. Consider that K&N has sold more than 20 million air filters since 1969. One such filter was put in the airbox of a three-quarter ton Chevy pickup and driven more than one million miles by Carl Judice of New Iberia, Louisiana. Carl points out that he has never rebuilt the engine, nor removed the cylinder head from his trusty pickup truck. Real world testing and customer satisfaction doesn't get any better than that. Click here for more information on Carl and his million mile truck.

Never Replace Your Air Filter Again
Handmade in the USA and in the United Kingdom using only the finest materials, K&N OE Replacement Air Filters are washable and reusable. Regardless of what you've heard, it's almost impossible to wash your K&N Air Filter too much. Inside our testing laboratory, we have washed and re-oiled one K&N Air Filter more than 100 times and it still performs up to specification. Depending on your driving conditions, we recommend cleaning your air filter every 50,000 miles. To clean and re-oil, purchase our filter Recharger service kit and follow the easy instructions.

Fuel Economy
Fuel economy testing and mileage claims are a tricky business. Just ask the EPA, whose website states, "EPA's fuel economy estimates are designed to allow consumers to comparison shop. Your fuel economy will almost certainly vary from EPA's fuel economy rating. This is based on a number of factors, such as weather, road conditions, your driving and maintenance habits, and your use of air conditioning." A lot of exaggerated claims are made in the marketplace by products claiming to improve gas mileage. K&N makes no general fuel economy claims, however we encourage you to try our air filter for yourself. Keeping air filter restriction as low as possible can be an important tool, among others, for maintaining high mileage. For more info read what some of our users have to say on the K&N testimonials page.

K&N Million Mile Limited Warranty and Consumer Protection Pledge
K&N warrants its street vehicle OE Replacement Air Filters for one million miles. When used properly and found to be defective, return your filter and the receipt from purchase and K&N will replace it free of charge. K&N's Consumer Protection Plan goes one step further than its Million Mile Warranty. The performance aftermarket has, at times, been plagued by car manufacturers and automotive dealers that may attempt to discourage you from customizing your vehicle. They prefer you buy OE parts and not modify your car or truck and have even been known to void their own manufacturer's warranty due to vehicle modification. That sounds un-American to us, which is why K&N and the Magnuson-Moss Warranty Act (more information here) protect consumers from such denied warranty claims. When you buy an OE replacement K&N High-Flow Air Filter or High-Flow Air Intake System you can be confident your vehicle's warranty will remain in effect. If you experience a difficult dealership, K&N will resolve the issue so you won't have to. The following summarizes the K&N Consumer Protection Pledge:

K&N pledges to our customers that they will not be taken advantage of and charged for a repair due to a dealership warranty denial blamed on the presence of a K&N product..

We believe K&N makes The World's Best Air Filter and we stand behind that claim 100 percent.

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