what size turbo? If it is big enough then you can run single. And what size intercooler? If you peice your own kit together wastegate, BOV, all the piping and the headers you will probably end up spending about another 2000.00, then you will need to supplement with a new fuel system, but an FMU will work okay, mass air meter, TB, and such. You can do it while remaining mostly stock like Sol93GT does. I have my whole kit and it cost in the range of about 4000.00 for everything. I bought my TB on Ebay, and now i need to get my Mass Air meter and injectors which will cost me about another 700.00.