OP - Optional part
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 Akrapovič 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 and M4 (G83) Competition models.
PERFORMANCE:
| Unit | Stock | Akrapovic | Max gain |
| Weight | kg | 1.8 | 1.0 | - 0.8 |
| lb | 4.0 | 2.2 | - 1.8 |
| % | | | - 44.4 |
| Installation time | min | | 180.0 | |
