I found out about PHP through folks on The Diesel Stop forum, while searching for info on the various tuners and chips available. I've been driving 7.3's for about eight years as company issued trucks, and purchased my own 2001 F-250 two years ago. I've gotten bitten by the performance bug lately, so I've been researching my options for mild upgrades, though bigger ones aren't out of the question, as the budget allows.
