With 2025 model year Ford Mustangs about a month away from appearing in dealerships, it’s wild to think that Blue Oval’s new S650 platform is rapidly closing in on having a year under its belt.

Livonia, Michigan-based Roush Performance has a new offer for seventh-generation Ford Mustang owners who love their 5.0-liter Coyote V8 and want to extract even more power from it. The S650 Ford ...