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33-2959
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MSRP $86.99 35.6% Off
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K&N 33-2959 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   7 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 33-2959 Air Filter fits some BMW X5 xDrive35d, and BMW X6 xDrive 35d 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 Amount3.45 oz (102 ml)
Height1.75 in (44 mm)
Outside Length12.625 in (321 mm)
Outside Width10 in (254 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height15.06 in (383 mm)
Product Box Length11.06 in (281 mm)
Product Box Width2.34 in (60 mm)
Product StylePanel Air Filter
Weight2.1 lb (1 kg)

K&N 33-2959 Air Filter Product Reviews

Monday, September 5, 2016 - Part 33-2959
Perfect fit for my 2013 X5D. It rides much smoother and lighter after installed K&N filter....love it.

Ryan Wen
Benicia, California
Monday, July 11, 2016 - Part 33-2959
Great product. I purchased a 2012 x5d and was only getting 17.8 mpg - far below the stated 21 city. First tank of gas after I changed the air filter was 20.2. First thing I do with every new car is put a K&N filter in.

Tim Brick
Paradise Valley, Arizona
Wednesday, June 8, 2016 - Part 33-2959
Great replacement filter. Vehicle fuel economy seems to have improved by 6-7. Still early to tell. Even if there were not an improvement, I am very pleased with my vehicles running performance with the new air filter.

Robert J Altemus
CENTERPORT, New York
Friday, April 1, 2016 - Part 33-2959
Excellent and the BMW dealer wanted $90.00 for an OEM filter. I love the technical advantage and improved flow. The only complaint is no K&N window sticker in the box... Great product, this is the sixth one I have purchased for six different cars.

John Duffin
Delaware
Tuesday, October 6, 2015 - Part 33-2959
Very good product. Better than factory recommended.

J-P Reconnu
Elgin, South Carolina
Friday, April 10, 2015 - Part 33-2959
Excellent product and wonderful, fast service from K&N store.

Jim
Salem, South Carolina
Monday, March 30, 2015 - Part 33-2959
The best product for my vehicles. Thank you.

Salomon Campos
United States