DSJockey....
I always forget to seach the forum for new stupid questions (I hate acting like a newbie...I know better), I found the thread from December for anyone else who's scanning this thread, its:
Engine Ice

 

Looks like these threads were a little older than I thought, it also covers several different products and there applications Scoobys thread starts the discussion, it's continued here and this was the last thread that I saw on 40 Below. At this point I'm at the same place as Blackhawk, just bought CF shrouds from Choice Racing and will be running Engine Ice this season, just might chuck that fan, Neosirfir you would have had to had the correct key word (40 below) to find this and the right dates (I just searched last year) these are the posts I was thinking about, there may be more