Reference: RS.G3050i.DP

BMW 550i 650i 750i G30 / 850i G15 G16/ X5 F15 / X6 F16 Downpipes

REDSTAR EXHAUST BMW M550i 650i 750i 850i xDrive downpipes have a smooth transition from 3.5in OD section to OEM exhaust. Provides a huge increase in exhaust flow and will allow for a significant power gain.*Please list in the comments VIN, year and model when ordering*