DNA Air Filters - Air Filter for CF Moto CL-X 700 Sport 21-23 / CL-X 700 Heritage 21-23This filter features DNAs Round Design. Installation of this new DNA Air filter is very easy; simply follow the installation instructions included in the workshop manual. DNA Filters are supplied pre oiled from our factory. The correct amount of DNA oil is applied n each filter individually. The filtering efficiency* is extremely high at 98 99% filtering efficiency, with 4 layers of DNA Cotton. The flow of this new DNA filter is +32. 83% more than the