Hypertech Semi-Truck Performance Chips
- Hypertech®ThermoMaster™ Power Chip (354832)ThermoMaster™ Power Chip by Hypertech®. Hypertech Power Chips are direct replacements for the stock chips. The Power Chip contains the Hypertech Power Tuning data that controls the engine’s air/fuel ratio and spark advance for...Maximum power and performance plusReplace stock chip$172.58