Sport thermostat valves are available, opening at 71 degrees Celsius, from Oxid Company. Fits most cars, including: Caprice Cadillac CTS Cadillac Escalade Avalanche Camaro Corvette Sierra Silverado Tahoe Compatible with all GMC and Chevrolet engines: 4.8 - 5.3 - 5.7 - 6.0 - 6.2 Price: 180 Warranty: 6 months on valve sealing and the valve itself has no issues. Oxid Company's quality is so high that this warranty is almost unnecessary. Also available: Aluminum sport elbows from Oxid Company for Jeeps, Land Cruisers, and FJ Cruisers. Sport cabin air filter with a longer lifespan than the original, washable, for Jeeps from models 2014-2018. Price: 320. Limited quantity. Sport engine air filter, washable, with a longer lifespan than the original, for Land Cruisers. Models 98 to 2007. Price: 280. Quantity: 1. Limited quantities available. For orders and inquiries, please contact via WhatsApp: 0565828385