i wrapped my header...looks great too...reduced engine heat ALOTTT!!

i wrapped it...then sealed it with black silicone spray..then used my heatgun to get it to dry faster..

after that i wrapped it with a foil tape..from downpipe to the head..that way..the way it overlaps..it will be like shingles on a roof
water will flow off of it..

its good stuff..but it kinda sucks to work with..doesnt like to be cut...and its itchy

but for budget cooling..heat wrap > ceramic coating