got finished installing some doug thorley shorties and vette ls3 c/f fuel rail covers today. nice headers, they fit excellent and look great. it took me 35 min to install the drivers side and it can be done from the top without dropping the cats. the pass side is a little worse, it requires dropping the cats, unplugging the o2 sesors, and feeding it up from the bottom, about 2 hrs (with some brew) the vette fuel covers are a real pain, they are not a bolt on, they require a new fuel line an evap line, a heater hose reroute
http://www.camaro5.com/forums/showth...r+hose+reroute
and some extensive trimming and fitting to make them clear the a/c lines and heater hoses. what a pain. but they look cool. i had my lettering redone in aqua blue to match the car and they turned out nice.