Forgot to mention, from my own research, it appeared that the Gryphon with Bill's custom tunes (and the included pyrometer) was much cheaper than the buying a chip, 3 guages, a guage pod, and code reader reader software separately.
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www.VibrantLED.com -- '02 7.3L Excursion Limited ~135Kmi total; ~50Kmi on WVO
Vegistroke V3 (installed 4/09); HIH, Aux Pump, FPHE (added 11/10); WVO Designs CF
PHP Gryphon; 6637 intake; 4" exhaust; Terminator HPOP; Tru-Cool; Evans NPG+; other goodies...