Superchargers and Coyote 5.0-liter engines are fast friends. Boost, plus a high-revving, free-breathing V8 creates big power. Creating that power also adds in some heat. In street use that heat is manageable, but in racing environments, it can hurt performance, especially in warmer climates.
To help keep heat at bay, ROUSH Performance developed its Max Cooling Kit, which is standard on the 2021 ROUSH Stage 3 Mustang, and an optional upgrade for the 2018-2020 models. Included in this cooling system augmentation are functional front fascia corner pockets, which let in more airflow to cool the additional coolers secured in CAD-designed steel brackets. Formed, factory-style housings route coolant through the added heat exchangers while fender vents let the hot air escape.
The system increases engine cooling capacity by 28 percent and supercharger cooling capacity by 22 percent. Those are significant gains, which allows the system to drop underhood temperatures by 14 percent. When combined with the most up-to-date ROUSH calibration, the system also allows for engaging an Engine Cool Down Feature that will lower the engine temperature in just three minutes, which is beneficial for racers between laps on the round course or rounds on the drag strip.
If you don’t have a 2021 Stage 3, you can pick up the Max Cooling Upgrade (PN 422270) for $2,099 from a ROUSH Performance dealer.