Like the title says. I don't care if it's cracked or anything. I almost prefer it that way, I'm cheap and can weld. Needs to be T4, I can weld on an external wastegate if it doesn't have it already.
Honestly, I've never tried it and I'm alittle iffy on it. I mean, making an o2 back exhaust is easy because there aren't really that many angles to think about. Wit h the manifolds you have to think about welding every peice and making sure you can get all the way around them. But I think I'll try to make it to your shop today to talk to you about it.