Ok, I was wondering mostly about appearance. My original mat looks almost like rubber and very thick. The repop I got was thin, light and made of foam that would rip if you breathed on it. As far as Jim, I tried to get through to him and the guys I got on the phone about their repro radiator tags. They are NOT correct for the 68Z. The code he has on his is not a Camaro code or even GM. He inisisted it was correct and I referred him to this site. I really need a correct radiator tag and it's frustrating to be so close, but I'm just some knucklhead to him and I was hoping somone that knew him could get through to him.