Need answers on body kits

[EAGLE EYE]

I have tried to get a reply from these companies selling body kits. My front and rear bumpers are damaged,previous fire damage. My question is will I still need to replace these bumpers or will they replace the stock bumpers. The one I am looking at is <A HREF="http://www.acespeed.com.sg/mazda_MX_-3.jpg" TARGET=_blank>http://www.acespeed.com.sg/mazda_MX_-3.jpg</A> THANKS FOR YOUR HELP