So got lucky on this and got one for $0. Friend of mine bought it for his 370Z and decided to go FI over the winter, So we traded some protein for it! ( I have a side company with the wife). I installed it last night pretty strait forward and should have only taken me an hour or so but tool 3. Three of the stock TB bolt heads where stripped and I had to drill two of them off + broke a bit and DRILLED my forearm LOL OUCH.

First impression was WOW, First punch of the throttle is a KICK in the pants for sure. I haven't had a chance to get up near 6-7k yet but the down low and throttle response is different for sure. Plus the over all engine sound has changed at WOT Just more growl.
I should have a dyno with my tune and Z1 HFC's in few weeks.

 

Yup it's good! I like it! can't hear it though 'cause of my exhaust =\