Originally Posted by MRF582
Jason, please don't trust the white balance on what is probably a cell phone picture on the internet. Also, since when have you started arguing for the practical point versus the theoretical/idealistic?
Even if the white balance was off the header would have to be in excess of 1800F to look like that, if you want proof I will throw a piece of 304, 321 whatever into our heat treating oven and take a pic at ever 100F increment.
Not only that but the shape of the subaru header (U shaped in a sense) lends itself well to thermal expansion. Did I run an FEA on it? No but no header under a couple thousand dollars has ever seen any form computer modeling.