2025 Mustang Gt500 Horsepower Specs. With the dark horse bits, though, it seems safe to. The mustang gtd spirit of america is strictly an appearance package, which is just fine considering the standard gtd already has 815 horsepower and a completely bespoke chassis.

With the dark horse bits, though, it seems safe to. The 2025 mustang ranges in power from the ecoboost with 315 horsepower to the dark horse with 500 horsepower.