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K&N 33-2278 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   5 Customer Reviews
  • 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®
The K&N 33-2278 Air Filter fits some FAW Pentium B50, FAW Pentium B70, Mazda 6, Mazda Atenza, Mazda Faw.M 6, Mazda Faw.M Ruiyi, and Mazda MPV models. See vehicle applications link for details.
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 the majority of vehicles 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]

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.17 oz (34 ml)
Height1 in (25 mm)
Outside Length12.625 in (321 mm)
Outside Width6.875 in (175 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height13.56 in (345 mm)
Product Box Length7.72 in (196 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight1 lb (0.4 kg)

K&N 33-2278 Air Filter Product Reviews

Thursday, February 23, 2017 - Part 33-2278
I've been buying these filters for years and notice an improvement every time. Thanks guys

Fergus Mitchell
Exeter, United Kingdom
Thursday, July 28, 2016 - Part 33-2278
Perfect fit. Engine sounds better and more response from it... Love it 10/10

Sergio Lopez
Bordon, United Kingdom
Monday, November 9, 2015 - Part 33-2278
Great product I notice more power and better acceleration.

Anthony Ernst
Tuesday, March 31, 2015 - Part 33-2278
Excellent replacement air filter for a 2004 Madza MPV. Took 5 minutes to change.

Juneau, Wisconsin
Friday, March 6, 2015 - Part 33-2278
Quick and easy, no hassle. I love your product and will be returning to your store to buy a CAI for my Toyota Sequoia.

Tom Gerth
Florence, South Carolina