Product Code:SAE CPGM1 Title:J1349 Certified Power Engine Data for GM LH8 as used in 2008 Hummer H3 - Level 1 Issuing Committee: Scope:This product includes information on the manufacturer, engine, application, testing location, certified maximum horsepower, certified maximum torque along with the certified curves of horsepower and torque over a wide range of engine RPM speeds.