[soutthpaw]

7.3's dont have a pyrometer built into the vehicle. as this is the most important gauge to have you will need to add one anyway even with the Gryphon. That said get a Phoenix chip or the FU package... you can shift on the fly unlike the gryphon that takes several minutes to download the tune to your truck... You will be at about the same price with gauges and a flip chip as you will with a gryphon and the Pyrometer adaptor I think is available for it Get the Pyro and trans temp if your truck does not have it. Boost gauge is nice but not manditory for basically stock trucks...
Once you run a Flip chip you will never be staisfied with any programmer on a diesel too many great tunes out for your truck so 6 choices will get filled easily...