A standard 2025 Ford Mustang GT with a 5.0-liter V8 produces 480 horsepower and 415 lb-ft of torque. The Spec 3 RTR Mustang claims that the supercharger increases those numbers to 810 hp and 615 ...

RTR Vehicles will have Spec 1 and Spec 2 upgrades for the ... The company provides a Spec 3 and Spec 5 upgrade for the 2023 Mustang, which upgrades the 5.0-liter V8 engine with a supercharger ...