Quote:
Originally Posted by A_White_Gs-R
there are some benifites to it such as keeping temps down under the hood and stuff like that but at the same time it accelerates the deterioration of the header its self. remember it insulates heat and that heat has nowhere to go so the header gets incredibly hot itself under the wrap. it begins to crack sooner than later.
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Exactly!!!! I put header wrap on my Jackson Racing header back in 1993 and it destroyed my header within 6 months!!! It must have retained water or something (although you would think it would burn off) and the header rotted out!!! I'll never do it again unless I know for certain the header is a quality SS.