GENUINE BMW M PERFORMANCE FLOW THROUGH REAR SPOILER, GLOSS BLACK, 51192464331. We offer for sale this GENUINE BMW X5 (G05, G18) item, brand new and unsued in original packaging. THIS LISTING IS FOR. 1 x Rear Tailgate Spoiler, M Performance (High Gloss Black). Some specifications of the following BMW vehicles. X5 G05 (09/2017 -).