$750 each, there will be some electrical wiring, a few of the tuners have already hacked the PTM and it will a simple matter of time until a reflash will reactivate it the modes required
eg.... There are already LT4 / turbo menus in all Camaros
http://www.camaro6.com/forums/showthread.php?t=433591
replaced ZL1 with LT4