Universal AMSOIL Replacement Nanofiber Dry Air Filter (INJX-1046-BB)AMSOILs Replacement Nanofiber Dry Air Filter delivers high performance airflow and reliable engine protection using advanced SuperNano Web media. With a high flow base layer and a highly efficient nano membrane on top, it maximizes air intake while keeping dirt and debris out of your engine. Lab tested and race proven under extreme conditions, this filter improves horsepower and torque while maintaining engine safety. 100% cleanable with a light blast