OP: FYI an air filter is not gonna make any significant power gains. AA's green filter is well built and that's what I'm using right now. Intake sound/noise may change but that's it. I believe AA's is better built than K&N, but that's just my appreciation. Want bigger gains? Go HFC/catless or better yet: S/C.
Akrapovic Evolution with Carbon Fiber tips | ESS Akra Evo tune V2 | Dinan Pulley | iND Cosmetic Package (Color Matched Front Grilles/Reflectors/Side Gills) in Space Gray | LUX H8 Angel Eyes