Originally Posted by LEGA-Z

Well, I spoke with my installer, and with Cold Fusion directly, AND, with Zex, and even ZeX said that their kit and the kit's ratio moniter isn't for the 370z(even though some have done so), and the components aren't necessarily adding useful safety. They are more of a "placebo for peace of mind" as Cold Fusion put it, and even Zex hinted at that. I ended up going with Cold Fusion because of pricing.... Both are doing the same thing....