Akrapovic Classic Carbon Design Exhaust Tips - BMW / G8X / M2 / M3 / M4A ground breaking octagonal shape has been fashioned from lightweight titanium with a carbon fibre outer sleeve, totally in keeping with lines of the car. For more traditional buyers, there is the classic cylindrical design, also constructed from same materials, but featuring an update to the current range of tailpipes for BMW cars available from Akrapovi. This product fits on xDrive, CSL, M3 Touring (G81), M4 (G83) Competition and Convertible models.