Back in 2006, Nick D’Amico showed up at the first Diesel Power Challenge in an ’02 Chevrolet Silverado 2500HD using a Duramax LB7 engine fitted with the factory turbocharger. A stock single turbo!?
Sometimes it's the things that aren't done to a vehicle that make it impressive. Take Caleb Carpenter's '03 GMC Sierra 2500HD for example. With a factory fuel system, no lift pump, stock injectors, ...
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