K&N - 55-1000 K&N Covered Assembly

The K&N Replacement Air Filters for the UMP Off-Road Air Box: part 55-1000 has a 3 inch outlet and part 55-1001 has a 4 inch outlet. These air filters were designed to achieve high, virtually unrestricted airflow while maintaining filtration levels critical to your engine. Designed to increase horsepower and acceleration Specifically designed for off-road racing applications Washable and reusable air filter Designed for the UMP Air Box One year limited warranty