Hey all - have fitted a Cargraphic Valve Controller on my MY21 CGTS 4.0. Have contacted my insurance company to inform them of the modification, but they are struggling to categorise it. Have tried to get it across to them, that the exhaust remains factory standard. The only modification, is that I can now control whether the valves remain open or closed.
How have others tackled this mod with their insurance company?
How have others tackled this mod with their insurance company?
