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Meet Big Blue, an '03 GMC Sierra 2500 HD powered by General Motors' Duramax ... Bolstering the Duramax's new popularity is good performance: 300 hp-the '05-and-later models will feature 310 ...

Patrick "McRat" McSwain has been in the diesel performance industry for many years and is well-known for drag racing his '05 LLY Duramax, nicknamed Casper. If running 10-second quarter- miles is ...

Absolutely love everything about my new truck. Upgraded from an 05 to 15 and what an upgrade, smooth, quiet, better visibility, duramax needs DPF and EGR deleted but overall amazing The truck ...

the 2021 GMC Sierra 2500HD AT4. Now, there's a lot of alphanumeric salad to take in after that Sierra, so let me first break down what exactly it was I was testing: OK, so you know which specific ...

Those who stick with the GMC's standard gas-fed V-8 should expect to see even worse fuel economy than with the diesel option. Inside, the Sierra 2500HD and 3500HD have a huge dashboard that hosts ...