Plans have changed and I no longer require something that may interest anyone who has experienced the dreaded limp-home condition while tracking their C63 AMG. You know who you are! Please check my listing in the marketplace for AMG 44O Cooling Package for W204 facelift C63, years 2011-2015. Google and AMG forums (MBWorld, AMG Private Lounge) have plenty to say about this factory upgrade to Black Series cooling performance so I won't lay it all out here except to say it cures the problem. Will install on earlier C63's but custom brackets and some fabrication will be required. New in the boxes, just opened for inspection. Obtained from local M-B dealership. Thanks for your time :-)