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The Denali’s standard 420 hp is nothing to scoff at. 560 hp is better. The Callaway SC560 GMC Yukon Denali achieves this number by adding a GenThree Supercharger — the same one it uses on the Corvette and Camaro — and a trio of intercoolers to the 6.2L V8. It’s paired with a ten-speed automatic and four-wheel drive to get all that power to the road, augmented by options like upgraded brakes, wheels, tires, and handling components.Callaway says it managed to turn the 5,743-lb SUV into a bar-setting machine through a series of upgrades we’ll detail in a bit.As some of you know, the stock Yukon Denali makes 420 hp, a figure that’s been stretched to 560 hp courtesy of Callaway in-house-built GenThree Supercharger ($17,995) that’s been teamed up with a TripleCooled Intercooler usually seen in Callaway’s custom Corvettes. Max torque is now 553 lb-ft.On the braking front, the so-called Le Mans GT Brake Pack ($9,890) uses aluminum calipers with six pistons up front and four pistons at the rear to keep the SUV’s newly gained oomph in check.Callaway’s press blurb also mentions a lot of attention went into ride control and handling. Thus, a new suspension kit sends the truck two inches closer to the asphalt while stiffer sway bars allow it to perform better in corners – or so they say.


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