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Originally Posted by Sphoolin
So if the welds themselves were not shit to begin with, as they were a decent pair of headers, why excatly would Thermal wrapping them cause it to crack as has been said? I was thinking of thermal wrapping my headers before they are installed but would rather them not to crack.....
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i was told by the guy that coats the headers, whom told me that sand blasting removes any fatigues that the welds may create. thus when there coated they are less prone to crack..