1994-1996 Impala SS Thermostats

A Hypertech PowerStat Low-temp Thermostat improves performance in two ways: first, by increasing the mass flow rate of intake air, and second, by reducing the engine's tendency to detonate.

From the laws of physics, we know that cooler air is denser than warmer air, and since horsepower increases as the amount of air and fuel burned increases, cooler air makes more power.

Detonation abruptly ends the normal combustion process, reduces power, and can severely damage the engine. A Low-Temp PowerStat reduces the temperature of both the incoming air/fuel mixture and the surfaces of the combustion chamber, greatly reducing the tendency to detonate, and allows the engine to safely develop more horsepower. Recommended for use with the Hypertech Power Programmer Plus.