I am looking to buy the nismo rear and sides and have a good opportunity to get them in fiberglass. But have decided to not go with fiberglass sides. I plan on molding the rear into the bumper. Is fiberglass the best choice for molding?? Or would urethane be a better decision. if i get the rear in fiberglass, how is the fitment of the nismo replica?? Anyone with any insight, please reply.

 

also are the nismo side skirts any lower then the factory side skirts?