What is the point here to prove I'm wrong ?, or to test a new product ?,to honestly give the pros, and cons ? Here the phone # 951-371-4878, call TTI, and tell them your header reduces have small holes in them, about 1/8". Ask them if it would be OK the fill them with jb weld quick. Even though the package says it's only good to 500 degrees. I'm not even going to make believe to answer the question. You make the call. I already know their answer, because I had a long conversation with their guy on different coating last week.
