Well, it seems pretty popular now for many of us to remove our Ecotec engine covers and polish the intake manifold (plenum). I've been told by a guy at work and have also read on this forum more than once that removal of the engine cover is defectable. OK, so, have any of you members been defected for it? Or been warned by the cops to put it back on? We know that these covers only trap heat and many of us prefer the polished plenum look. Not really asking for opinions, just whether you have been or know of someone that has recieved a defect.