2012-2018 BMW 3 Series (F30 / F31) M Performance Style Rear Diffuser

This is the Kies Motorsports M Performance style rear diffuser (non-carbon) for your F30 BMW 3 series. This will fit any of the F30 generation BMW 320i, 328i, 335i, 330i, 340i as well as the xi and diesel variations. You MUST already have the M Sport rear bumper, as this diffuser will NOT fit the base bumpers. If you do not have an M Sport rear bumper, have no fear, you can purchase one of our Kies Motorsports M sport style rear bumper conversions kits so you can make your cake and eat it too! For those of you wondering, yes it does fit the F31 wagons! Rejoice! The m performance package from BMW adds an aggressive aerodynamic look to the already stylish F30 3 series. Remember, our Kies Motorsports M performance style rear diffuser (has fins) replaces the standard m sport diffuser (no fins) at a fraction of the cost, so what are you waiting for? DIY Instructions: Why Kies Motorsports? If quality, fitment, and durability is important to you, look no further than Kies Motorsports aero