Instantly tune your car for higher performance by simply installing one of these chips! The Hypertech Thermo Master Power chip improves performance and keeps the engine cooler in situations of extreme heat, such as in competition and desert driving. Cooler air has more molecules per cubic inch which delivers more horsepower and reduces the tendency to detonate. Engine tuning is improved and all temperature sensitive functions controlled by the chip (such as torque-converter lock-up, closed loop operation, and early fan operation) are adjusted to a cooler temperature thermostat (required).