I am an avid member of
http://www.thirdgen.org I also own a company that is almost ready to begin manufacturing HEADERS for the 60* engine family for third gen camaro's. This includes 2.8/3.1 or if oyu have swapped in a 3.4. I am also in the process of having these headers CARB Certified in the US. I think if they pass California EPA sniffers, that they'll pass anywhere. I also will be creating a turbo kit that you can add you own turbo and intercooler too as well as a few other things.
Feel free to email me for aditional info.