http://www.renntech.org/forums/index.php?showtopic=13633&hl=german
http://www.renntech.org/forums/index.php?showtopic=13671&hl=german
I think you meant like in the above links.
Now that I think about it, why is there a need to use stainless steel? The exhaust from the manifolds back to the muffler is not stainless. I can think of no reason to use stainless other then it is nice.