Thanks. Sorry for my snarky response, but I still think I’m right. You bend some 304 in a mandrel bender and put some flanges on, maybe like a high end steel framed bicycle you’d like beautiful welds instead of a dump.
This $800 part is what you are saying is too expensive, right? 3 mandrel bends, 6 welds, a stainless flex pipe, etc. Made with probably $300 in raw materials cost, and has to fit perfectly in a really tight space. IDK where you live, but it would cost me ~3x to get that custom fabricated by a welding or exhaust shop, and it wouldn't be an "engineered solution" meaning it would likely rub/chafe on things, or crack over time, and would have zero warranty- I would have to get it refabricated when it failed.
Maybe you can get by with one of those aluminum can thick flexible emergency exhaust pipes they sell at auto parts stores for $9.99 🤣