Thats the thing it does get supper hot,which is why im thinking this must affect other aspects of working parts performance ect,don't get me wrong,with the mani getting supper hot,you want the heat to escape,and for the reason of cracks failer.but not wraping the mani it can still escape heat,and hopefully push the heat down,rather than boil your charge pipe temps ect,this sheild is something in process and will need minor tweeks,but hopefully will keep temps down and turbo elbo in one peice,preporation is key.