DNA Yamaha R6 air filter adds horsepower while letting your sportbike breathe better. The Efficiency of DNA Filters maximizes breathable surface area compared to the OEM filters allowing you to get the most horsepower on any track day event.Equivalent to Yamaha OEM: 13S144503000 & 13S1445000 TECHNICAL FEATURES Features DNA's advanced FCD (Full Contour Design) DNA FCD air filter flow: 141.20 CFM (Cubic Feet Per Minute) @1,5" H2O corrected @ 25° Celsius The DNA filter has a higher airflow than the Yamaha stock paper filter! Extremely high filtering efficiency of 98-99%, with 4 layers of DNA Next Generation Premium Cotton These air filters are washable and resusable Drop-In Hassle Free Installation (simply follow the information in the workshop manual) Lifetime Warranty FITS Yamaha R6 (2008+)