Ive got the undercover as well, they dont leak!!!! BUT!!!!!! they do crack and the company will not warranty them, despite there warranty. They crack at the front hinge points right through, and I went right to the top of undercover head office and they basically told me to jam it politely. I fought with them for 6 months and said it was cause I drive around with it up, wich has never happened yet, I take it off if I need the box. So I told them that ill give them a TONNE of free advertising so here it is. DONT BUY ONE!!!