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K&N 33-2131 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 33-2131 Air Filter fits some BYD F0, BYD F3DM, Citroen C1, Daihatsu Boon, Daihatsu Sirion, Peugeot 107, Subaru Justy IV, Toyota Aygo, Toyota Belta, Toyota Passo, Toyota Platz, Toyota Ractis, Toyota Vitz, and Toyota Yaris 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
Height0.813 in (21 mm)
Outside Length10.125 in (257 mm)
Outside Width4.563 in (116 mm)
Package Contents1 Air Filter
Package Quantity1
Product StylePanel Air Filter
Weight0.6 lb (0.3 kg)
Filter Re-Oiling Amount0.49 oz (14 ml)
Product Box Height13.56 in (345 mm)
Product Box Length7.72 in (196 mm)
Product Box Width1.75 in (44 mm)

K&N 33-2131 Air Filter Product Reviews

Thursday, November 16, 2017 - Part 33-2131
Really happy with product, fast delivery too. Will use this company again in future. Thanks

Phil Barratt
North Hykeham, United Kingdom
Monday, November 6, 2017 - Part 33-2131
As and when I change any of my Vehicles or bikes, I have always replaced the air filter with a K&N Performance Filter, knowing that I can guarantee the best possible performance and reliability at least from the induction side of tuning as well as minimum maintenance.

Alan Bottomley
West Yorkshire, England
Tuesday, July 18, 2017 - Part 33-2131
Very good application and performance.

Ioannis Lyrakos
Pallini, Greece
Thursday, September 17, 2015 - Part 33-2131
I have installed this exceptional product on my used Toyota Aygo 1.0L 2006' model. Got a slight increase in power and a significant improvement in sound quality with a fuel consumption reduce in 5-10 which is essential in little city cars. I have bought 2 more for different cars owned by my cousin.

Saturday, March 15, 2014 - Part 33-2131
I use this part on my Toyota Aygo '08 and the improvement is noticeable! The car is more agile and the the fuel economy droped by 10%.

Vlad Gugles
Iasi, Romania