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K&N Performance Air Filter - Premium Lifetime, Washable, Replacement Filter - 33-2857

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Manufacturer #33-2857
Vehicle Info Required to Guarantee FitAdd Vehicle


33 Series
Recommended Use:
Performance Replacement
Quantity Sold:
Sold individually
10-year or 1 million-mile K&N limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

European Vehicle Parts
Filtration Efficiency Rating:
96 to 99%

Vehicle Fitment Information

Vehicle Name
Fitment Information
2003-2006 Porsche Cayenne
8 Cyl 4.5L
2003-2006 Porsche Cayenne
8 Cyl 4.5L
2004 Volkswagen Touareg
6 Cyl 3.2L
2004 Volkswagen Touareg
8 Cyl 4.2L
2004-2006 Porsche Cayenne
6 Cyl 3.2L
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Product Information


K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

  • Engineered power: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration; clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%
  • Easy installation: Pre-oiled and ready to drop into your factory air box; one of the easiest and most cost-effective upgrades for your vehicle for quick performance gains
  • Saves money: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters
  • Eco-friendly: Using a washable, reusable product helps reduce replacement waste; K&N filter will last longer than 10 disposable filters
  • World class protection: Pushing the limits of engine protection by protecting your engine from harmful contaminants
  • Low-maintenance design: 50,000 miles before your first cleaning under normal highway driving conditions
  • High quality: Made in America
  • Race tested: The Official Air Filter of NASCAR; trusted on the racetrack—made for your vehicle

Started in 1969, K&N has garnered a reputation for engineering the world’s finest filtration products for cars, trucks, SUVs, motorcycles, race vehicles, commercial vehicles and anything in-between.

Need help?Call our product expert1-866-529-0412
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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Customer Reviews

You'd think I'd know from past experience w/ K&N how good the filter would be. Big V-10 diesel w/ two filters has noticable extra power because these filters breath so much better than the paper OEM ones.
Purchased on Sep 05, 2008
I had hard time finding the air filter for my Cayenne. Once it was delivered (super fast), it took 5 minutes for my husband to install the filter. It got rid of the old sock smell right away from the AC Vents. The Porsche dealership told me how to fix the problem by turning on the AC on high fan and high heat. It didn't work. It would cost at least 5 times more to have it done at the dealership. Had I known that it'd be this cheap and easy, I would've done it sooner.
Purchased on Mar 08, 2008
I love K&N filters. They are so much better than stock.
Purchased on Oct 09, 2008