Upgrade the full potential of your BMW R1300GS with this brand new DNA Performance Air Filter set. This high-performance air filter is engineered to deliver unmatched power, responsiveness, and longevity for your motorcycle. OEM Air Filter Air Flow : 96.10 CFM (per filter). DNA Air Filter Air Flow : 124.30 CFM (per filter). DNA Increased Air Flow : +29.40% (per filter). DNA Filtering Efficiency : 98-99%. This filter features DNA’s advanced FCd (Full Contour design). Unique designed pleats to improve airflow. To install this new DNA Air filter follow the installation instructions included in the workshop manual. The filtering efficiency is extremely high at. Filtering efficiency, with 4 layers of DNA Cotton. A perfect airtight sealing and trouble free filter installation for the user is guaranteed by using a high quality. EVA seal, which is precisely cut and factory installed (glued). DNA Filters are supplied pre-oiled from our factory. The correct amount of DNA oil is applied? N each filter individually. The flow of this new DNA filter is. +29.40% (per filter). More than the stock filter! DNA air filter flow. 124.30 CFM (per filter). OEM stock filter’s flow. 96.10 CFM (per filter). This DNA filter is designed as a High Flow Air filter for. Road, Off Road & Race use.