When I had the turbo kit on I used that crappy FMU it came with but I took the kit off and sold the tiny gt2560r. My new turbo setup is in the works it includes: precision 5431 turbo, full 3 inch exhaust, ARP head studs, Bisi intake gasket, tial external wastegate, STR cast t3 manifold, Walbro 255 fuel pump, with RC 550cc injectors tuned on a chipped p28 with chrome.
All of this probably won't be done until the end of this summer though since I am a relatively poor college student.