Instantly tune your vehicle for higher performance by installing a Hypertech Thermo Master Power Chip. It improves performance and keeps the engine cooler in situations of extreme heat, such as racing and desert driving. Cooler air has more molecules per cubic inch, which delivers more horsepower and reduces the tendency to detonate. 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).