Haas
Senior Member
You may possibly be able to take a stock bolt/stud and go to a fastener business and tell them you need it in stainless steel.. you may have to ditch the stock heat shields and just get a bolt. My headers have been on for over two years with the stainless bolts and no probs. I'm in the north east.. hot and cold.
You don't need headers just to replace with better hardware. It's just thread and pitch.
I realize what your saying, but isn't the real problem the different expansion rates of the two different metals? Simply changing the bolts to a different type of metal, seems to be a compensation for the problem, without actually addressing the problem. Kinda like treating the symptom rather than the disease?