Automotive tuners are typically predictable when it comes to the vehicles they work their magic on. Tuner cars are usually either high performance to begin with, or they are cars that have most of what they need and just get that extra touch. If you keep up with industry talk, you know what we mean. Every so often a model will be released that is marked for tuning, and sure enough, some outfit will release their package promising a big horsepower increase for an otherwise pedestrian vehicle.
That’s what usually happens. But sometimes tuners have a sense of humor. Sometimes they go for something a little more unorthodox.
This video features a supercharged 2015 GMC Yukon Denali. It goes from zero to sixty in four and a half seconds. Depending on which trim and powertrain you start with, that’s a difference of two to three seconds.
All of this is made possible thanks to Hennessey’s HPE650 tuning package. It takes a 420-horsepower V8 engine – found in another notable GM vehicle, the Corvette – and boosts it to 665 horsepower and 658 pound-feet of torque.
Is there any reason for this monster to exist? Either you hav cause to tow your trailer very, very fast, or you like to engage in high stakes carpool drop off. Really though, when it comes to tuning, the motto might as well be “There’s no reason this shouldn’t exist.” (The EPA’s motto is likely the exact opposite.)
If you take your Yukon to Hennessey, you will also get special badging and embroidered headrests along with the performance boost, and the package comes with a decent-length warranty, too.