Filtration K&N - Auto Reverse

K&N Inverted Top Universal Air Filters - This unique approach to filter design and concept utilizes a filtering top that actually inverts, dropping into the cylinder of the filter. Surface area is greatly increased and designed to provide more filtration than any other comparably sized product. With three color options you can customize your intake to match the rest of your car. Air filters are essential when it comes to your vehicles performance and protection.

K&N RR-3003 Universal Air Filter

The pros and cons of pod filters - RevZilla

Anyone using the K&N drop in filters yet?, Page 2

K&N Honda Foreman, Rubicon, & Rincon Air Filter

K&N 57-3023-1 Performance Air Intake System with Blue

K&N Red Universal Clamp-On Air Filter - KNRE-0930, K&N

K&N Performance Air Filter for M40i !! - Page 3 - XBimmers

ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration.

K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with Select Briggs and Stratton/Honda/Toro Engines, 33-2238

ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance