Using a 4-3/4 inch hole saw and 1/8 stainless steel wire mesh high grade and a 2x6 stud and jb weld epoxy you can modify left air box for about 60. Bucks for a free flowing intake. 1 - cutout center of air box. 2 - cut 2x6 with hole saw to form stainless steel mesh with plug from 2x6 cutout. 3- use 4.5 inch side grinder with sanding wheel and smooth out cut. 4- trim stainless mesh.5 - epoxy mesh to cover with jb weld. Using a drill press and jig to hold cover works best