waxing them doesnt hurt. Mothers also has a pretty good chrome polish that i "think" is a protectant also, but im not sure, guess I gotta read the bottle again. Past that, chome is one of the hardest materials to damage, so unless ur like me, and live at the beach and drive them in crappy winter/salty conditions on top of that, just put them on a keep them clean and you should be fine.