Akrapovič diffuser, manufacturer part number DI-BM/CA/6, for BMW X4M.

TDesigned to make the X4 M / X4 M Competition stand out from the crowd even more, the visual delight of Akrapovič exhaust systems can be further enhanced with the addition of an optional, ABE type-approved  carbon fibre  rear diffuser. It’s beautifully handcrafted from the finest materials and is designed to enhance the exclusive look of the carbon tailpipes. Available in  high gloss  finish. Warning: Cannot fit with genuine trailer tow hitch.  With Akrapovič diffuser, hands-free trunk-lid opening/closing sensor is not working. SCHEMATIC NEW VERSION INSTALLATION INSTRUCTIONS ABE TYPE-APPROVAL CERTIFICATE