370Z is a totally different car from the 350Z. The exhaust is a dual to the back while the 350Z is a single. So there may be clearance issues with running the 2 pipes. I know Invidia and several others are dual, but those are designed for FX, this isn't. Also, I don't think the portion that attaches to the cats would fit since the VQ37HR is different.
It may work, but I doubt the expense of modifying it would be worthwhile.