For 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 (G83) Competition models.