Akrapovic Rear Carbon Fibre Diffuser - Gloss Black for BMW G8X M3/M4For extra visual impact, there is the option to add a hand crafted carbon fibre diffuser. Produced in house, this lightweight accessory with ABE type approval is designed to show off the tailpipes of the Akrapovic exhaust at their absolute best. A new feature is offered with this updated version of the diffuser: a high gloss black painted frame integrates the diffuser with the rear part of the vehicle. This product fits also on xDrive, CSL, LCI and M4