If your serious about doing a reflash on a Busa, Greg at BoostbySmith has what you need. There is alot of good info on the board on how to set up Greg's equipment. Walter Sprout does the tuning for the reflash using ECU Editor and he has all my chips in for the win. Long story short cost effective reflashing gets an A+, Options for settings another A+, reflashing on the Dyno takes a little more time than the PCIII equipment but it works great. I like using the equipmnet I have and getting the most out of it. Talk to Greg over at "BoostbySmith" he has what you need