Manufactured to perfectly fit the factory airbox, these filters use top-quality materials from around the world including the Powerflow filtering media
Direct replacement of original equipment filter with no need to change carburetor jets or settings
Designed and developed to meet the demands of high-performance engines
Fitment data lists this product for 7 model-year applications, including Yamaha Maxim 400 and Yamaha XS400, with listed model years from 1977 through 1983.