NEW Performance Rear Diffuser for BMW 4 Series F32 F33 F36 M SPORT 1 X REAR SINGLE DIFFUSER // MATT BLACK VERSION Your exhaust should look like this 0 - 0 COUPE / CONVERTIBLE / GRAN COUPE !! M SPORT REAR BUMPER ONLY !! WILL NOT FIT STANDARD REAR BUMPERS. Constructed from PP PLASTIC material Aftermarket rear diffuser Comes in matt black finish with SINGLE EXHAUST OUTLET ON EACH SIDE as shown in the pictures. We always recommend to having the front lip painted and fitted from experienced bodykit installers and not normal insurance approved body panel repair. Bodykit installers have the knowledge and tools for the correct preparation and installation.