Hi all ...first time posting as I never needed to as there is so much info and knowledge available. I have had this header for a long time (6+years ) . What I do know is that it's not metal and most likely ti as it seems they were only made in steel and ti. The flanges look like the akra but the spring locations don't. Just need help finding the make so I can find replacement parts(may not be available anymore). Thanks.
A lot of times stainless can be mistaken for ti when thin wall is used. I'm guessing stainless 304 as well.
Find a hidden area and hit it with a grinder real quick and see what color the sparks are.
White sparks means Ti, orange/yellow will most likely tell you its stainless.
Just talked to a buddy and he said magnets don't stick to stainless so it must be stainless. I originally thought this was a stainless hindle so I'm going to email them tomorrow and see if they can ID their work.