if you have read the 2006 racing season you will have seen the OE bulkhead silvered heatshielding come noise reducer smoldered/burnt during one race.
replace it and insulate hot things which get near it or can radiate to it.
if you wrap the dp, mani etc remember that heat has to come out somewhere, and beyond the heatwrap it will get superhot singing and melting things like exhaust rubbers etc.