The first one went on roasts car, and yes it is still under construction, the final product may sound slightly different as i think Phil is thinking about taking 20% of the resonate out of the mid pipe, so i will let you now how it sounds then (if he decides to do that).
You guys keep asking about prices and its not really for me to say but Phil wanted to hit the market with a middle of the range zorst ie inbetween scorpion and nismo.
What i can say though having hold of both scorpion and the invo in a short space of time is that you notice that the build quality on the invo far outshines the scorpion
If you are not desparate for a new zorst i would say wait and see what the final product looks and sounds like