Header Paint and hearder heat wrap ?'s

How does moisture stay in the wrap when the header is between 450 to 900 degrees???
IMO the extra heat that is not able to be released through the surface area of the header which raises the heat of the tubing greatly is what causes damage to the header. The purpose of header wrap is to decrease the temp of surrounding areas. Like under your hood..... to increase power, or to help with headers being too close to something you dont want hot...like your paint....

So to answer the OP yes header wrap will help to decrease temp to help with paint being ruined on your fender. Check summitracing.com They have pretty good prices on header wrap you will need around 75 ft depending on how you do it. Just get the 100 ft roll and have a lil extra. You can use saftey wire to fasten it and save a lil money vs the stainless straps...but the straps are pretty nice get em if you got the cash ....And the dei coating after wraping them is a must IMO.....good luck