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K&N 33-2129 4.9 out of 5 stars 45 Customer Reviews
Replacement Filters > Replacement Air Filter

 List Price: $74.44
Your Price: $50.99

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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®

Product Specifications 
Air Filter Shape:Panel
Filter Material:Cotton Gauze
Filter Re-Oiling Amount:1.85 oz (55 ml)
Height:1.188 in (30 mm)
Outside Length:12.438 in (316 mm)
Outside Width:9.813 in (249 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:33-2129
Product Box Height:17.81 in (452 mm)
Product Box Length:11.06 in (281 mm)
Product Box Width:1.88 in (48 mm)
Product Style:Panel Air Filter
Weight:1.8 lb (0.8 kg)

Product Reviews    See all reviews!  Review part 33-2129

 Working great so far!! I have used your products before and they help gas mileage!
Bill Terry, Troy, Ohio
 I haven't installed the air filter at this time. I will not install it for several more months. My online experience was perfect. On a scale from 1-10 with 1 being WW Z and 10 being heaven, it was a 9.5. Also the Hot Wheels Mustang is a nice touch. I just hope the filter is as good as advertised. Thank you.
Jerry Holder, Orange County
 Great filters!
Trever Christian, Minnesota
Mike Brown, Dayton, Ohio
 I have used K&N air filters for 10+ years. I just recently purchased a new GMC Crew Cab Z71 4X4 and ordered this one to put in the truck even though it had a brand new factory one in it!!!! I have always had positive results with these products.
Dave Crippen, Louisiana
 Great product and super fast shipping.Thanks to the suggestion sheet everything went smoothly with the installation, and I had it installed in twenty minutes.The only other thing that I did was to remove some dirt that was in the bottom of the air filter tray.I can see by the thickness of the stock filter compared to the K&N why it is so much better for power/performance at least the poor engine can breathe a lot better now.Thanks, I will be back for more of your products.
Rick Rattray, St. Thomas, Ontario, Canada
 Performance and Gas Mileage improvements are very noticeable.
Vincent , New York