I have a choice to get a Urethane Blitz kit or a Fiberglass one if I get the Fiberglass one I will save a bit of money and can add other mods, is urethane really worth it?

i thought you already had a body kit?
any ways if you plan on lowering your car i would go with urethane, but the urethane kits sometimes dont comeout well at all and you have an ugly bumper that sags, and you cant get it molded, i got fiberglass because it is easy to fix and cheap to buy :)

If you drive like me get fiberglass because it is easily repairable. I think you could use the search function for this or else go to "Things we've seen before"