I ordered a fmic for my car and wanting to get a bov to put on it instead of the factory valve. i like the sound of the turbo xs type h. but i cant decide on it i want the type h or if i want the rfl. i just dont know how loud one really is. would the rfl be to loud or even the type h to loud? i plan on moving the mass air flow to after the turbo. if i do that i dont need to keep the factory valve do i?