Unfortunately, I haven't! 🤣
It's currently with my welder as we speak. He's going to test the inlet pipe just to confirm it isn't titanium before cutting it off and attempting to weld on it. If it's stainless as yours was, then he's going to modify it for me. I provided him with a small section of the correct size stainless exhaust tubing, so we'll see.
Just to confirm once again, your guy said the inlet on yours was in fact stainless and not titanium, correct? And he didn't have any trouble welding a stainless piece to it?