06-08 Mugen wing install instructions
My mugen wing came with the install instructions, unfortunately they are fully in Japanese. You could use the google translate app on your phone or just use the pictures as a visual guide
View and download at this link https://drive.google.com/file/d/1BmN_ZiYgG7P_8fSfIMjLhv3fHB2xRb34/view