How can people not get there head around the tuning thing ill never understand. There are programs out there for free all you need is a cable and you can pull your tune make mods and put it back in to the pcm, Take my car a supercharged v6 vy. All i needed was a $50 aldl cable 2 FREE software programs and done i can pull my tune make mods and reflash it done easy. Yes you might need a few other pices of hard ware depending on your computer but they dont cost that much. How can people offer mail order tunes, easy they have a proven data base of what works with what mods so they get a list of what mods you have flash a chip/pcm and mail it out to you. As it has been said with the 300kw tune yes they just flash a known tune into your computer do a few runs to make sure its fine and SOME people MIGHT make a few very samll changes here and there. There will always be a few cars that need a lot of time because they are way out there with huge mods but 98% of the people out there with say a ls1 full exhaust and a otr will have a tune so close you would be shocked. Its the same motor same mods how can it be so different ??????? I have had a true custom tune done by dick and he has spent days with my car and im still going back for small adjustments here and there as different driving conditions show up small things that need an adjustment.