Get the kit and put any turbo that will match up to the header flange on it and have the kit you want. On the less expensive kits the weak links are always cheaper non-dual ball bearing turbo, internally gated vs. externally gated, crappy FMU or a crappy fuel pump and there is always the tune. As long as the header (does not crack) charge and discharge tubes work and the plenum does not leak you can turn a cheap kit into some really nice pretty easy with an upgraded turbo and other parts........ just find some who sells Garrett, Precision or Turbonetic turbo's at a great price.