Originally Posted by Blackcrimzon

I am not sure what it is though I believe its cast iron. I am hoping that HKS will be able to tell me more. I'll be taking my car into a shop on Monday for them to fix it and they believe that they can get it welded up. I would like to find some that are made from stainless steel however so that this will less likely happen again. Maybe some of you can tell by looking at the parts that they are made of. This is the original for sale thread of the kit I have on my car One and only 370z complete hks demo car twin turbo kit.

Does anyone have experience with getting the manifold crack fixed through welding? As long as its done right will it hold up?