One reason I am doing it is because I don't trust that my block off plate will hold back coolant. After my top swap I put the Gen V North* adapter plate on and it was leaking coolant onto the crossover even with RTV on it. I guess I am afraid it will leak inside into the Blower and wreck the rotors or get blown into the engine itself. This way I never have to worry about the coolant leaking anymore. Yes I know I could use silicone or something else to seal it better but I want a permanent solution.
