- Specifically designed for off-road racing applications
- Washable and reusable air filter
- Designed for the UMP Air Box
- One year limited warranty
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.