Split exhaustmanifold on e-bag

pharmboy said

Well, a single Dutra for the front wouldn't be exactly cost-prohibitive, not compared to what A-body headers go for. And you can close off the 4-5-6 half without welding. I wasn't planning on buying it, just said that it was a curious looking piece of work.​

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I am not attacking it, the price and quality of work seems reasonable. My only concern is the frequency of cracked cast iron manifolds when they are welded. I would hate to see someone get it, run it for a while, and the weld fracture, and them being stuck, either going back to stock, buying headers or buying a Dutra, all of which would require modifications to the existing exhaust system.