Predator built this 2007 Hummer H2 at their company in Hudson, Florida. The suv is powered by a turbocharged 6.6 L Duramax V8 making 465 horsepower and 1100 lb-ft of torque. They paired the diesel V8 with a Stage 4 Allison six-speed transmission with a triple-disc converter. The suspension features Hellwig sway bars, heavy duty steering stabilizer, Bilstein remote reservoir shocks. The SUV rides on Toyo Open Country 37×12.50×20 tires on KMC XD 20-inch wheels covering upgraded disc brakes.
Source: Predator
Is the fuel economy improved ?
It converts it to a 2wd with 4wd selection capable like most vehicles so it significantly improves the fuel economy.