Twin Air air filters are trusted to clean out dirt, grime, sand and water out of your engine while still allowing free airflow. Their fused dual layer design takes open pore foam and fine inner foam to create a filter that boosts air flow while still capturing small airborne particles to keep them from mucking up your engine. Refresh a Twin Air air filter by cleaning it with their special dirt remover that flushes dirt away. Then apply Twin Air air filter oil that penetrates the foam and dries with a high tack shield to trap dust. Use Twin Air coolant to keep your cooling system performing at peak performance. It is formulated for extreme off-road and on-road conditions no matter the time of the year.