AWE Tuning 18-19 BMW F90 M5 SwitchPatch Cat-Back Exhaust- Black Diamond TipsThe SwitchPath Cat Back Exhaust features dual 3 CNC mandrel bent . 065 wall T304L stainless steel tubing from downpipes to tip outlets with a precision engineered X pipe in between. Equipped with valved rear sections, the SwitchPath Cat Back retains all of the M5s valve behavior when changing driving modes and or using the exhaust button found on the console. The AWE Performance Mid Pipes replace the factory mid section with a 3 stainless steel X