Vic,
You might want to look at your post on Corral. You posted asking about G-Tech.... That's the performance analyser that plugs into your cigarette lighter !
About your username - OZVENOM (a Brisbane Cobra builder) put a Tial wastegate and blowoff valve on his turbocharged Lexus V8 Cobra. Great quality stuff !!!
My car's fun to drive - it couldn't turn a corner to save itself, but it accelerates well...