Overview

K&N Washable Lifetime Performance Air Filters

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.

The K&N 33-2428 Air Filter fits some BMW 535i, BMW 535i GT, BMW 535i GT xDrive, BMW 535i xDrive, BMW 640i, BMW 640i Gran Coupe, BMW 640i xDrive, BMW 640i xDrive Gran Coupe, BMW 740i, BMW 740iL, BMW 740Li, BMW 740Li xDrive, BMW ActiveHybrid 5, BMW ActiveHybrid 7, BMW X3, BMW X3 35i, BMW X3 xDrive28i, BMW X3 xDrive35i, BMW X4, BMW X5, BMW X5 xDrive35i, BMW X6, and BMW X6 xDrive35i models. See vehicle applications link for details.

•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®

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