The pricing on pfyc.com for the cartunning turbo is 5400. They have a link for the installation manual. http://www.pfyc.com/supportfiles/ls4_install_manual.pdf Doesnt seem to bad. There is some modifications for the intercooler to fit, and couple brakets.
here is the link to the pricing. Cartuning Turbocharger Kit - 5.3L LS4 V8 - PFYC
What surprised me is the kit has water/meth injetion standard, and a basic shift kit. But your just using u washer fluid for the W/M injection and say to becareful when resivor is low lol. One thing that bother me was that the uppipe from the intercooler to throttle body would rub on the resivor bottle and they said that this is NORMAL and ok. I woudl not want that happening to mine. AND the lack of heat sheilding
