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Replacement Filters > Replacement Air Filter

 List Price: $91.80
Your Price: $61.99

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33-2731
 
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K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty™ and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED. [More Information on Replacement Air Filters]
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
Available Information
33-2731 Cross Reference
Installation Instruction Sheet
33-2731 Vehicle Applications


Part 33-2731 Product Specifications
Product Style: Unique Air Filters
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Flanges: None
Height: 1.125 in (29 mm)
Package Contents: 1 Air Filter, 1 K&N 1oz Sealing Grease
Package Quantity: 1
Filter Re-Oiling Amount: 1.67 oz (49 ml)
Inner Wire: No
Outside Length: 12.875 in (327 mm)
Outside Width: 9.375 in (238 mm)
Top Style: Open
Weight: 1.1 lb (0.5 kg)
Product Box Length: 11.06 in (281 mm)
Product Box Width: 1.88 in (48 mm)
Product Box Height: 17.81 in (452 mm)



Customer Feedback      Be the first to review part 33-2731

Absolutely love the chrome-trimmed K&N air filter! It adds a lot to the overall excellent look and performance of my old but clean 88 Porsche 911. Thanks for providing such a great product, timely and inexpensively. I looked in all the auto parts stores in Albuquerque, but they had nothing comparable for that price in stock. I appreciate being able to order harder-to-find specialty items online at less than retail. Thanks!
Gary D Sampson, Albuquerque, New Mexico
Nice product!  I own a 2001 SAAB 9-5 AERO with 128,000 miles and just purchased my first K & N filter...very impressed.  After 2 tanks of gas I'm getting about 2 to 3 more MPG's (city) and the performance...wow!  Even though I never believed it...Aeros are reportedly faster than a stock porsche 911 of the same year.  However, after replacing with the K & N filter, I'm a believer!  Not sure how much horsepower I've gained but the car is much much more responsive and will flat put you back in your seat if you punch it!  I never thought an air filter would make that big of a difference, but it did.
Mike, Newburgh, Indiana
This is the 5th K&N filter that I have installed on my vehicles. They are high quality and fit perfectly. My Porsche filter finally failed after 20 years. I just sent them a picture and a new filter showed up in several days. Great customer service!
Phil Boughton, Alexandria, Virginia