That's a great example of how the pissing matches get way out of hand. By the way, I'd just like you to know that the manifold that I'm building will be made from Inconel with Cosworth repurposing their F1 design and testing data for my application. It'll be welded with FR's robotic welder while Geoff Raicer and I do The Robot. The whole assembly will be cryo and WPC treated for strength, which will be necessary so that I can lift the entire car up by the wastegate flange, as designed in Pro-E supported by thorough FEA. By the way NASA wants me to build a second one for their next lunar vehicle. So, Z28Ricer, I see you're building headers using mild...