This BMW G8X M3/M4 OEM Style Carbon Fiber Diffuser offers a great visual upgrade for your M3 or M4. Our rear diffuser features an OEM style in carbon fiber to enhance the rear visual appeal of your G80, G82 or G83 BMW. The G8X M3/M4 OEM Style Full Carbon Fiber Diffuser will seamlessly match other RW or OEM parts you have on the vehicle as we craft them from genuine 2×2 weave dry carbon fiber. We know our customers care deeply about the parts they choose to install on their vehicle which is why we only use the highest quality carbon fiber fabric, clearcoats, and resin in the making of our products. Just like the rest of our product line this OEM Style carbon fiber diffuser comes with the RW superior fitment and quality guarantee. Installation is purely bolt-on and does not require and special modifications or cutting.