Hennessey shoves another 350 hp into the Ford Mustang Dark Horse

The Texan tuner announced the intention to spice up the Mustang Dark Horse last summer, and has now begun the production. The car loses its naturally aspirated quality, but gains a healthy 350 horsepower in the process.

In its stock form, the Dark Horse packs a 5.0-liter V8. Once upgraded with a supercharger, new fuel injectors, an improved fuel pump and a high-flow intake system, it goes from the stock 507 PS (500 hp / 373 kW) to 862 PS (850 hp / 634 kW). The torque likewise rises from 566 to 881 Nm (from 418 to 650 lb-ft).

As a result, the muscle car hits 96.6 km/h (60 mph) from standstill in 3.2 seconds and finishes a quarter-mile run in 10.9 seconds – 0.5 and 1.1 seconds faster than stock, respectively.

Aside from the power package, owners get some mild interior styling tweaks. Hennessey claims there is custom embroidery on the headrests and badges saying “H850” all around, but they aren’t visible in the photos below. The pricing remains to be announced.