he supplies everything... opensource.

Trust me an off the shelf map is an oxymoron in itself... and do you really wanna put your engine under the strain of trial and error while you try to learn to tune your own car, not to mention that last time i checked a tactrix cable is around 80$ and thats guessing that you already have a wideband o2 sensor and a laptop.

200$ for Snowman to tune you the right way the first time.