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K&N 33-2129 4.9 out of 5 stars 48 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

 Since I have replaced my OE paper filter with my new K&N filter, I have seen an increase in my horsepower and fuel efficiency. I definitely feel that I have made the right choice by moving to this brand. Thank you very much. I also am impressed by the quick shipping of my part! Keep up the good work and I will definitely will be coming back for any further upgrades to my vehicle.
Christopher Oyler, Fountain, Florida
 Fast shipping and perfect fit!
Dave , Washington
 I run these in all of my factory air boxes and on my motorcycles. Better gas mileage and better throttle response.
Wayne, Indiana
 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