Are there any aftermarket radiators for the MCS? The PWR radiator appears to be for the Mini Cooper, not the S. Any recommendations would be appreciated.

 

Any number of suppliers of radiators for racing applications, am sure would accomodate your needs. These are usually custom fabbed out of aluminum and have such nifty features as blanked header tanks so that the water is forced through twice before heading back to the motor. Google...radiators, racing.