UniFilter - Competition II Air Filter (NU-4144ST) Options:Air Filter As a sling

As a sling

designed to an easy-to-use length matched to the nipple

developed for the leading factory teams

High stability thanks to the embossed patterns

UniFilter - Competition II Air Filter (NU-4144ST) Options:Air Filter As a slingDesigned to fit in the factory airbox UNI FILTERs 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 FILTERs 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