to add adj camber when installing coilovers vs any other type of lowering spring/shock combo? Here is a dictionary meaning of the word "necessary" "1 a : of an inevitable nature : INESCAPABLE b (1) : logically unavoidable (2) : that cannot be denied without contradiction c : determined or produced by the previous condition of things d : COMPULSORY 2 : absolutely needed : REQUIRED "
There is not a damn thing preventing someone from installing just a set of coilovers, hence they are not absolutely needed.
