K&N Engineering SU-1806
K&N Engineering SU-1806: Automotive. Buy K&N Engineering SU-1806: Air Intake - ✓ FREE DELIVERY possible on eligible purchases. More air means more usable power and acceleration throughout the engine . s replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over ,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 .. . . .