Im about to srorkle my 08 bf efi . For looks i would like to go with a 2 inch pipe for my air box. Will i get enough air with a 2 inch pipe or should i go with a 3 inch pipe for my air box only. I do not want to hurt my performance so what should i do. I know some bikes have to rejet carborators, but being fuel injected do i have to add anything else. Thanks for any help.