Roush’s 810-HP Mustang Kit Undercuts Ford’s $100,000 Dark Horse SC

More Bang For The Mustang

Earlier this year, Fordintroduced the Mustang Dark Horse SC, a factory-backed supercharged version of the Dark Horse that produces 795 horsepower, though it comes with a starting price of more than $100,000. Now, Roush Performance has unveiled a new supercharger package for the MY2026 Mustang GT and Dark Horse at a significantly lower cost. Better yet, the system is 50-state CARB compliant, meaning owners in emissions-strict states such as California can legally take advantage of the added performance.

Roush offers the supercharger kit for $10,399 and says it delivers 810 horsepower and 630 lb-ft of torque. That is 15 more horsepower than the 5.2-liter supercharged V8-powered Mustang Dark Horse SC, though it makes 30 lb-ft less torque. Still, that is an impressive result considering the kit can be added to a Mustang GT that starts at under $50,000.

Crunching The Numbers

Both the Mustang GT and Dark Horse use a naturally aspirated 5.0-liter Coyote V8, though the latter gets powertrain upgrades that help raise output to 500 horsepower, or 20 horsepower more than the GT. The Mustang Dark Horse also starts at around $64,000, which means that even with Roush’s supercharger kit added, it still comes in well below the Mustang Dark Horse SC.

Roush’s 810-horsepower upgrade uses an inverted Eaton TVS R2650 supercharger developed with Magnuson Superchargers, along with a “track-ready” cooling package and a fully upgraded fuel system. The kit is capable of producing up to 13 psi of boost at 7,500 rpm. According to the American tuner, a stock S650 Mustang equipped with the package, slick tires, and running on a prepped track can sprint from 0 to 60 mph in 2.88 seconds and complete the quarter mile in 10.33 seconds at 136 mph.

The Value Play

While the supercharger kit may produce more power on paper, it is worth noting that the Dark Horse SC comes with upgrades beyond the engine, including revised bodywork and suspension enhancements. Buyers can also opt for the Track Pack, which adds specially calibrated dampers, carbon-fiber wheels, and carbon-ceramic brakes designed to improve track performance.

Still, the new Roush supercharger kit offers clear savings for those itching for the added punch of a forced induction setup. The tuner also says the kit is designed for easier installation, with no need to remove the front fascia and custom-formed hoses included. It is backed by a 3-year/36,000-mile limited powertrain warranty.

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