This weekend I am going to put thermal insulating jacket w/ radiant shealding around all of the intake pipes from the end of the CAI to the turbo, from the turbo to the IC, & from the IC to the throttle body. You can buy this stuff in sheets a few feet large. Then to flash it up a bit (providing even more thermal resistance in the prosses), I will then cover all of that with a lace up style of shiney radiant pipe covering. YES, heat soaking back into the intake piping is a common cause of HP loss. Plus cooling down the charge air temps will also help prevent detonation. Keeping the charge air temps down is why some people go with a FMIC, NO2 IC sprayer, or both.