The Power Hungry Performance Hydra Chip is a 17-position programmable chip for 7.3 Powerstroke trucks, giving you on-the-fly access to up to 15 tuning presets plus a No-Start and Module Bypass position. The included two-digit LED switch lets you always see which preset is active and change it in seconds, and HydraFlash™ software lets you update or reprogram the chip online with the entire PHP calibration library. Features 17 total memory positions (15 tunes + No-Start + Module Bypass) Removable two-digit LED display switch mounts on any flat surface Optional dash-mount bracket and USB extension for permanent installation Reprogrammable online with free HydraFlash™ software Supports most competitors' calibrations Fully compatible with PATS-equipped vehicles Tunes range from 25 HP Heavy Tow up to 140 HP Extreme, plus High Idle, Valet, Whisper, and Teen Driver modes Reads the factory PCM calibration directly through the chip Includes chip, digital switch, ribbon cable, and USB cable