DNA PERFORMANCE AIR FILTER YAMAHA X-CITY 125 2006-12. DNA PERFORMANCE AIR FILTER YAMAHA X-CITY 125 2006-12 This New filter features DNA’S Advanced Full Contour Design, the filtering media covers the complete air box surface eliminating “dead spots” that cause turbulence, increasing air flow, filtering efficiency and service intervals; and will replace the stock filter without any modifications. Installation of the filter is very easy; simply follow the information that can be found in the Yamaha owner’s manual. The filtering efficiency is extremely high at 98-99% filtering efficiency, with 4 layers of DNA Cotton. Filtering efficiency is the amount of “dirt” the filter can maintain (stop) and protect the engine efficiently. For example the DNA Filter for every 100 grams of dirt that it will receive, it will hold 98-99 grams, this applies even to fine dirt as small as 5 microns. This DNA filter is designed as a High flow filter for Road & off road use. This New filter features DNA’S. Advanced Full Contour Design. The filtering media covers the complete air box surface eliminating “dead spots” that cause turbulence, increasing air flow, filtering efficiency and service intervals; and will replace the stock filter without any modifications. O compared to the stock Yamaha filter at 112 CFM. No additional information at this time. You might also like. IXIL Hyperlow Dual Exit Silencer HONDA CBR125R 2011-16. IXIL L2X Hyperlow Full System – Honda MSX125 2021-23. IXIL Race Xtrem Carbon Full System Yamaha MT-09 / SP 2021-23. IXIL Black Full System Low mount – Honda Monkey 125 2018-23.