Hennessey Performance have worked their magic once again, this time on the 2015-2016 Yukon Denali.
Available exclusively on models equipped with the 6.2-liter V8, the HPE650 package has increased the unit's output from the standard 420 HP and 460 lb-ft (624 Nm) of torque to no less than 650 HP at 5,500 rpm and 658 lb-ft (892 Nm) of torque at 4,200 rpm. This translates into a zero to sixty sprint in 4.5 seconds and a quarter mile run in 12.9 seconds, with an exit speed of 106 mph (171 km/h).
Squeezing the extra 230 HP from the GMC Yukon Denali's powertrain was achieved by adding a 2.9-liter supercharger system, high flow intercooler, stainless steel cat-back exhaust and HPE engine management calibration followed by dyno tuning and road testing. All Yukons featuring this upgrade will also benefit from the serial number dash and engine plaques and "HPE650", "Supercharged" and "Hennessey" exterior badges,
On top of the package one can opt for the Hennessey Wheel Upgrade with 22-inch rims, and Brembo 15-inch front brake calipers. The tuner's aftermarket features are coming with a 3-year / 36,000 miles (~58,000 km) warranty, but no pricing details have been released yet.
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