Hypertech PowerStat Thermostat Features: Realize Full Potential Of Hypertech Power Tuning Replaces Factory Thermostat No Modifications Required Induces Less Heat Into The Intake Reduces Engines Tendency To Detonate Height: 2.50 Width: 3.25 Length: 4.50 Weight: 0.19 lbs Fitment: 2000/Pontiac/Firebird/Base Coupe 2-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated^^2000/Pontiac/Firebird/Base Convertible 2-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated^^1999/Pontiac/Firebird/Base Coupe 2-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated^^1999/Pontiac/Firebird/Base Convertible 2-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated^^1999/Chevrolet/Camaro/Base Coupe 2-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated^^1999/Chevrolet/Camaro/Base Convertible 2-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV ...