DNA STAGE 2 PERFORMANCE AIR FILTER KIT – BMW R1200 GS 2013-18. This DNA High performance air filter is a high quality, next generation, multi-layer cotton gauze, oil impregnated air filter that NEVER needs replacing. Installation of the filter is very easy; simply follow the information that can be found in the BMW workshop manual. This new “DNA Stage 2 Adventure Expedition Kit” replaces the stock BMW air filter and the “restricting” plastic frame.. Designed to “sit” lower than the stock filter, frees the 2 air flow passages that direct the cold air from the front of the bike to the filter. Smoothly directing the incoming air towards the lower air box, we eliminate restriction, turbulence and improving torque and power. With an active filtering surface of 132.300 mm2 this “DNA Adventure Expedition Air Filter” has 80% larger filtering surface and 38.5% air flow, compared to the standard replacement air filter. The increased filtering surface and air flow will significantly extent the service intervals of the filter allowing the user to travel longer before cleaning the filter. Regardless the revolutionary new design the filtering efficiency2 remains very high at 98-99%, with 4 layers of DNA Cotton. This DNA S2 application can be used for road and off road use. This new “DNA Stage 2 Adventure Expedition Kit” replaces the stock BMW air filter and the “restricting” plastic frame. This DNA S2 application can be uséd for road and off road use. No additional information at this time. You might also like. IXIL Hyperlow Dual Exit Silencer HONDA CBR125R 2011-16. IXIL Race Xtrem Carbon Full System Yamaha MT-09 / SP 2021-23. Ixil Race Xtrem Black Silencer Honda CB750 Hornet 2023-24. IXIL Black Full System Low mount Honda Monkey 125 2018-24. CUSTOMERS OUTSIDE OF THE UK: VAT will not be charged on your order. Motorcycle Performance Store are official UK Distributors of Termignoni, QD, Ixil, Ixrace and SC Project Exhausts, T800 UpMap Bluetooth tuning modules, Puig Motoplastics, and DNA Performance Air Filters.