its my understanding that unless your running an upgraded turbo, the stock ct-26 will not flow any more air than when its at 13psi, so going over 13 psi only creates heat, and will not flow any more air and over spins the turbo to its limits.. so yes going over the stock 14.5 fuel cut can be unsafe to the turbo for sure , trust me on this one, hahhaha i know from experience..i just rebuilt and upgraded mine.
that being said, if your still interested, and your turbo is larger than stock, get the hks fcd k3 type, i got mine on ebay for 99$ and works like a champ
reference the part number if you buy one.. needs to be the k3 one with rpm signal 4501-RM003
http://www.hksusa.com/products/?id=683
http://cgi.ebay.com/ebaymotors/HKS-F...spagenameZWD1V