how to fixs a utherane crack
 

i crack my cobra r front bumper kit and the kit is made of utherane, i need to kno wat to buy to fix it, like something from kragen or autozone, anyone know?

I don't even think there is much you can do to fix it. You didn't say how big the crack is or where it is but I don't think bondo would help. I cracked my urethane Cobra R bumper and just got a new one, but it was way beyond any kind of repair.

if you dont know what to buy, then you dont know how to fix it properly. take it to somone who does.

Someone hit me a while ago left a nasty tear in my bumper take it to someone depending on how bad it is they will know how to fix it....sometimes they use a wire mesh to rebuild really damaged chunks like mine was.