I have an 02 GT that is relatively stock. I have the usual bolt ons, cat back, shifter, K&N, and 3:73's. I am looking for a single turbo kit to put on that will give me good performance now and will be able to support future mods, say fresh short block with forged internals and TFS heads and cams. Any suggestions? I have been looking at the On3 Performance kit and it looks pretty complete, but it seems a lot cheaper than say the Hellion kit. Is the On3 kit not complete? This project is about 6 months out but I wanted get started on my research now.