Downpipe for 4.6 engine mounted on: BMW F85 (X5M) BMW F86 (X6M) Downpipe diameter: 3 "76 mm Mounting plate: V-Band 3" 76 mm Downpipe by TurboWorks, made of 100% stainless steel. Downpipe decat dedicated to 4.6 engine mounted in: BMW F85 (X5M) BMW F86 (X6M) Diameter of the downpipe: 3 "Outer diameter: V-Band 3" TurboWorks downpipe, made 100% of stainless steel.Downpipe suitable for 4.6 engine mounted in: BMW F85 (X5M) BMW F86 (X6M) Downpipe by TurboWorks, made of 100% stainless steel. Downpipe diameter: 3 "Mounting flange: V-Band 3"