Down pipe flange
I am upgrading my stock exhaust on my 5.7l JGC into that of the SRT8. I bought the manifolds and am interested in the down pipe flanges and 6" or so piece of tube. I don't need the CATs, just the flanges for perfect seal with the manifolds. I can also have the flanges custom made but I do not know what material to make it out of to avoid any thermal expansion leakages. Anyone knows What material is the manifold flange made of (mild stainless steel, ......etc)??
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