2024 Duramax Power. In gale’s latest video, he runs it on our chassis dyno to see how much of gm’s claimed 25 horsepower increase actually makes it to the wheels. Power retractable assist steps with perimeter lighting, $1500;

With this inside look, gale finds upgrades to the new 2024 l5p that you won’t see on a spec sheet. Published on april 28, 2023 8:47 pm.