Roush Max Cooling Upgrade Kit Mustang GT With Roush Supercharger 2018-2023

Get excited because, finally, the auxiliary cooling system featured on every 2021 Roush Stage 3 production vehicle is now available for your 2018-2023 Roush Supercharged GT Mustang. This upgrade draws more air into and out of the engine compartment, increasing engine cooling capacity by 28 percent and supercharger cooling capacity by 22 percent. An American-made product, the Roush Max Cooling Upgrade Kit (422270) is max speed tested in a number of scenarios, guaranteeing the ultimate performance. 

Features and Benefits:
- 28% Increase in Engine Cooling Capacity (More Surface Area and Radiator Volume)
- 22% Increase in Supercharger Cooling Capacity
- Heat Extracting Fender Vents Reduce Underhood Temps by 14%
- Max Speed Tested in Drag Racing, Autocross and Road Course Conditions
- Includes All Necessary Hardware and Templates For Installation
- Proudly Manufactured in The USA! 

While the front fascia corner pockets give your Mustang a more menacing attitude, they do more than contribute good looks to your car. They are fully functional, delivering more airflow via the front bumper. Using the provided CAD-designed steel brackets, you can mount the coolers behind the fascia for an OE look and fit. Lastly, formed hoses further ease the installation process with quick connect fittings. (No relocation of windshield washer bottle is required with this kit).

Kit Includes:
- Auxiliary Engine Cooler (Driver Side)
- Auxiliary Supercharger Cooler (Passenger Side)
- (2) Fender Heat Extractors
- (2) Gloss Black Front Fascia Corner Pocket

Vehicle Fitment:
- 2018-2023 GT Mustangs with Roush Supercharger

Also included are fender vents, which promote the proper function of the low-temp radiator and auxiliary heat exchangers. They allow air to escape from beneath the hood, which reduces underhood pressure and delivers more airflow across the heat exchangers. It is necessary to transfer the heat from the low-temp radiator to the air, and the fender vents serve useful in doing so. During the installation process, the factory fender liners will also be modified to allow airflow through the fender wells instead of being trapped behind the fascia.

Please Note: If not up to date, please flash the vehicle with latest Roush Calibration.