Video: Hennessey-Upgraded 2014 GMC Sierra Pushes 550 HP on the Dyno

Video: Hennessey-Upgraded 2014 GMC Sierra Pushes 550 HP on the Dyno

Video: Hennessey-Upgraded 2014 GMC Sierra Pushes 550 HP on the Dyno

With so much power under you foot, how much fun would a truck or SUV be with nearly 200hp more than stock, compliments of Hennessey Performance? All we can say is sign us up!

Posted by Lindsey Fisher

CategoriesOn the Dyno

Tags2014 Sierra 6.2L Hennessey Hennessey Performance Hennessey Sierra supercharged GMC Sierra

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