Hennessey Performancethe famed Texas-based tuner, has just unveiled a package of high-performance upgrades for the new Ford S650 Mustang Dark Horsewhich increases engine power and improves the appearance of the latest version of the iconic pony car.
He Mustang Dark Horse S650 It’s powered by the 5.0-liter Gen-4 Coyote V8 engine, albeit upgraded with connecting rods taken from the GT500 and a dual throttle body for 500 horsepower. This model can be ordered with either a Tremec 6-speed manual or a Ford 10-speed automatic transmission, plus upgraded Brembo multi-piston brakes.
But now, Hennessey outdid itself with a new high-performance superchargera high-flow air induction system, upgraded fuel injectors, and a new fuel pump, all of which are managed electronically with an update to HPE Engine Management Software, to create the H850 Dark Horse.

With all these improvements, Mustang boosts power to 850 horsepower and 650 lb-ft of torquewhich represents a power increase of 70%.
But since it’s not just about performance, Hennessey gives the H850 Dark Horse its own aestheticwith a front splitter, side skirts and a larger rear wing, all made from carbon fibre.
It also debuts a set of forged aluminum alloy wheels, while inside highlights are embroidered headrests and Hennessey badging is added to the side panels and rear fascias.
Production of the new models will begin in the fourth quarter of 2023.