I got my new MT header today. I took some pictures of it, it is slightly unique. The header pipe is a flex, but not the type that I've seen in RC before, more like a flex straw, no ugly leak in your cowl. I like that it comes off at about a 30* angle down and it hugs the engine quit closely. It's thin wall stainless, Larry said when used with his canister you don't need a coupler. I'm going to put it on my 17 pound WACO bipe with a MT57 I took out of my 22 pound Yak.