UniFilter - Competition II Air Filter (NU-1421ST)

• Designed to fit in the factory airbox UNI FILTER’s high air flow, superior dirt stopping ability, and long lasting dependability have made the PRO COMP II.
• The bestselling replacement air filter for competition motorcycles.
• The UNI FILTER’s unique two-stage design allows for easy and complete cleaning.
• The outer layer can be used dry as pre-filter allowing for longer intervals between cleanings, or it can be oiled for superior engine protection in unusually wet conditions.
• *The inner filter must always be oiled.