About Mile Marker
K&N's Mile Marker air filter is the result of years of research and development. We've tested it on more than 1600 vehicles, and it's proven to provide excellent protection and maximum power. With our state-of-the-art test equipment, we've conducted more than 110 filtration tests and 1200 air flow tests. The Mile Marker is the perfect choice for your car, truck, or motorcycle. It's the only filter you'll need to keep your engine running at peak performance.