Ford OBS 5.8L Gas Tuning With The Hydra Chip from Power Hungry Performance

Factory ECU tuning using a Hydra Chip on a 5.8L Ford OBS Gas truck. Works on the 302, 460, 351, and more!

[@IamMonsterMan]

I have one of the weird years ('97 F-250HD 351) with EEC-IV. Should still work right?

[@veronicacars483]

Yep. The EECIV and EECV PCMs should all be good to go. If you send PHP the PCM code, they can confirm.