I just turned the show on, looks like i'm not the only one on here while watching TV.
70hp is VERY optimistic, more like unrealistic if you ask me. Its a pretty common thing though, cry02 kits have been around for a while. Some people say they are good, others are skeptical because the Co2 can be sprayed into the intake tract. It works on the same principle as nitrous intercooler sprayers, which have shown gains, but some people say that is because the nitrous is making its way into the intake. I've never used it, but a friend of mine with a turbo s2k gained 25whp while spraying. BTW, I didn't see the beginning of the show, but I hope they built the bottom end on that Z since they like to throw rods when they are boosted.