DNA Air Filters - Air Filter for Yamaha WR 250F 03-13 / WR 450F 03-13 past type tag-Gloves - Dirt Bike Reduces friction by 20% over

Reduces friction by 20% over standard seals

All Kawasaki Zephyr 1100

some bikes may have larger welds in the area where the SubStraight ADV bolts into the muffler brackets

3DF soft shell impact shoulders for better neck brace compatibility

DNA Air Filters - Air Filter for Yamaha WR 250F 03-13 / WR 450F 03-13 past type tag-Gloves - Dirt Bike Reduces friction by 20% overThis filter features DNA's Round Design. 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). Installation of this DNA Air filter is very easy, simply follow the installation instructions included in the YAMAHA workshop manual. The filtering efficiency is extremely high at 98 99% filtering efficiency, with 4 layers of DNA