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K&N 33-2401 5.0 out of 5 stars 1 Customer Review
Replacement Filters > Replacement Air Filter

 List Price: $75.39
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]
Available Information
33-2401 Cross Reference
Air Filter Test Data
News Story - 2008 to 2011 Ford Focus Lifetime Performance Air Filter Released
News Story - 2000 to 2008 Ford Focus Performance Upgrades
33-2401 Vehicle Applications

Part 33-2401 Product Specifications
Product Style: Unique Air Filters
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Flanges: None
Height: 1 in (25 mm)
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 0.88 oz (26 ml)
Outside Length: 8.5 in (216 mm)
Outside Width: 7.813 in (198 mm)
Weight: 0.98 lb (0.45 kg)
Product Box Length: 10.44 in (265 mm)
Product Box Width: 1.75 in (44 mm)
Product Box Height: 11.56 in (294 mm)

99-5050 - Filter Care Service Kit - Squeeze

Product Reviews      Review part 33-2401

 Superior performance product, my fifth one. Always get more mpg and midrange torque that really works. Ordering direct was very easy and shipping was quick. A K&N fan for life! Stock air:never again!
Wm. Blake Mackan, College Station, Texas

K&N 33-2401 fits the following:
2011 FORD FOCUS 2.0L L4 F/I - US
2010 FORD FOCUS 2.0L L4 F/I - US
2009 FORD FOCUS 2.0L L4 F/I - US
2008 FORD FOCUS 2.0L L4 F/I - US, exc. PZEV