Hot Sale K&n Performance Air Filter - 5-series (f10/f11/f18) 520i/528i 9/2011-2017 Equipment [d9nNC1Lu]

K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. 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. Our stock replacement air filters for street vehicles are covered by their famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

-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

-Will NOT void vehicle warranty

-Million Mile Limited Warranty