If you're looking for a quick and easy way to gain up to 10 hp from your 1993-1997 LT1-powered Camaro/Firebird or 1992-1996 LT1-powered Corvette, SLP offers a thermostat to lower engine operating temperatures, while increasing thermal efficiency and your engine's performance in the process. Lowering your engine's operating temperature will not only increase performance, it will add reliability and longer engine life by decreasing the stress caused by heat fatigue. This thermostat will make a performance difference on even a stock engine. SLP's thermostat is an OEM quality bolt-on piece. It includes hardware for an easy installation. NOT legal for use on pollution controlled motor vehicles.