Substantial power and torque gains across the board.
Chevrolet: Express 1500 08 - 08 5.3 L Engine, Hummer: H2 08 - 08 6.2 L Engine, GMC: Yukon XL 1500 08 - 08 6.2 L Engine, Chevrolet: Tahoe 08 - 08 6.2 L Engine, Cadillac: Escalade 08 - 08 6.2 L Engine, Cadillac: Escalade EXT 08 - 08 6.2 L Engine, Chevrolet: Silverado 1500 07 - 08 5.3 L Engine, Chevrolet: Avalanche 07 - 08 5.3 L Engine, GMC: Yukon 08 - 08 6.2 L Engine, Chevrolet: Suburban 1500 07 - 08 5.3 L Engine, GMC: Sierra 1500 07 - 08 5.3 L Engine, GMC: Savana 1500 08 - 08 5.3 L Engine, Cadillac: Escalade ESV 08 - 08 6.2 L Engine, GMC: Yukon XL 1500 07 - 08 5.3 L Engine, GMC: Sierra 1500 08 - 08 6.2 L Engine
