Looking to upgrade the cooling system anyone have any ideas besides the Johnson pumps. Here is something I found it looks like SLR technology but who wants to spend $16,000 http://www.renntechmercedes.com/engi...tercooler.html I realize that isn't our engine just looking for ideas. I want to upgrade to the RENNTECH kit but before I do I want to make sure the cooling system is good to go so the supercharger doesn't cut out do to temp.