Description ADRO A14A40-1301 Rear Diffuser for BMW M3 (G80) / M4 (G82 / G83) Make your four-barrel exhaust even more spectacular with the ADRO carbon fiber rear diffuser. With a more aggressive design, carefully crafted aerodynamics and a beautiful carbon fiber finish, this is by far the highest quality and most aggressive rear diffuser available. Technical characteristics - Material: Dry Carbon Fiber - Version: v1 What’s in the box - 1 Rear Diffuser - 3M Tape - Screws