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K&N 33-2181 Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5 5.0 out of 5 stars 19 Customer Reviews
Replacement Filters > Replacement Air Filter

List Price: $73.40
Your Price: USD $49.99

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33-2181
 
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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 K&N 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 ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.21 oz (36 ml)
Height1.25 in (32 mm)
Outside Length13.688 in (348 mm)
Outside Width5.188 in (132 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height17.19 in (437 mm)
Product Box Length8.31 in (211 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight0.9 lb (0.4 kg)


Product Reviews


  After installing the filters I experienced better throttle response. I am pleased with the product.
Mario Ontario, Canada
  Great service, quick shipping, took about 30 minutes to install, remember it is on a Mercedes SL550. I am a long distance driver, over 100 miles per day, and a mileage nut. Will let you know what happens with mileage, but throttle response is noticeably quicker, I can hear the engine more when I accelerate. Wish you guys had a cold air intake for this monster...I guess its a very limited market.
RICHARD JACKSON CAPE CORAL, Florida
  Easy to place order. Filters arrived when scheduled. Installation was easy as filters were exact replacements for stock. This is third car I have ordered K&N filters for. Good product.
Mike Reisinger Springs, Colorado
  Have been a K&N user for 40 years and use their products in both my street cars and my race cars. Simple, guaranteed to fit right and economical since they are cleanable and resuable. Can always count on them for some extra fuel milage gains too once the ECU has time to update itself.
Russ Maxson Budd Lake, New Jersey
  I've been using K and N air filters in all my cars. It gives the performance I wanted and being re useable is a must. Lasts up to 50,000 miles before needing to be cleaned. I highly recommend.
Joe Sou Buena Park, California
  Excellent product. I have always been a K&N fan. Very reliable product. I noticed an improvement in throttle response. A little louder than the stock air filter, but worth the $.
Jeff Collins Illinois
  Love your products!
Kyle Graff St. George Utah