Spool Upgraded Auxiliary Heat Exchanger | Mercedes C63 [M177]

Spool Performance introduces a pivotal upgrade for the Mercedes-AMG C63 and C63S models with the 4.0L V8 bi-turbo engines: our High-Performance Heat Exchangers, designed to significantly enhance the water-to-air intercooling system. The advanced competition racing core in our heat exchangers nearly doubles the capacity compared to the OEM units, with a volumetric expansion from 7430 cm³ to an impressive 13250 cm³—a 56% increase for the front heat exchanger. Similarly, the side heat exchanger sees a 54% volume surge from 1620 cm³ to 3000 cm³. This substantial increase in volume translates directly into a notable reduction in charge air temperatures, as the larger surface area provides greater thermal inertia, thus enhancing the cooling efficiency of the coolant before it enters the intercooler. The result is a more consistent performance under high-load conditions, ensuring that your AMG’s bi-turbo engine operates within optimal thermal parameters for extended periods. Our heat exchange