KEDO High Flow Air Filter TT500, XT500, high-quality cotton, NOT pre-oiled, street legal (Oil and cleaner see item 91350) KEDO Replacement Air FilterUnique cotton fabric with special lattice structure, resulting in a larger surface area for optimal intake air and improved filter performance with reduced flow resistanceCan be washed out many times, making economic and ecological sense under normal road conditions, the filter must be washed out for the first time after 80,000 km (corresponds to a 2 to 3 mm thick layer of dirt!) Installation takes place instead of the original filter with the original sheetsDelivery is dry, please oil with K&N air filter oil before installation