GENUINE BMW 4 SERIES (F32, F33, F36) M PERFORMANCE REAR DIFFUSER. We offer for sale this genuine BMW item, new and unused in original BMW packaging. THIS LISTING IS FOR. 1 x M Performance Rear Diffuser. Of the following models. 4′ F32 (11/2012 – 02/2017). 4′ F32 LCI (05/2016 – 06/2020). 4′ F33 (03/2013 – 02/2017). 4′ F33 LCI (05/2016 – 07/2020). 4′ F36 Gran Coupé (07/2013 – 02/2017). 4′ F36 Gran Coupé LCI (05/2016 – 05/2021). Brand new, unused item in original packaging. Buyers outside of the United Kingdom.