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: 0.22 lbs Fitment: 2001/GMC/Savana 2500/SLT Standard Passenger Van 3-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2001/GMC/Savana 2500/SLT Extended Passenger Van 3-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2001/GMC/Savana 2500/Base Standard Passenger Van 3-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2001/GMC/Savana 2500/Base Standard Cargo Van 3-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2001/GMC/Savana 2500/Base Extended Passenger Van 3-Door/4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated^^2001/GMC/Savana 2500/Base Extended Cargo Van 3-Door/4...