It is very common in the exhaust/header business where stainless steel is used to use mild steel for the flanges. Stainless flanges are prone to cracking in an exhaust application. This is one of the reasons why some vendors will ceramic coat stainless steel headers/exhausts. It keeps the product looking great, and the mild steel flanges from rusting.
Just my .02
Tony D
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www.newedgeperformance.com
Proud sponsor of the Think Zinc Project Car
Just my .02
Tony D
------------------
www.newedgeperformance.com
Proud sponsor of the Think Zinc Project Car
