Stainless steel ESD own construction….

I would like to know if one of you has a self-made exhaust system (132kw front) on it. Would like to have one made of stainless steel. Have at present only a tube on my left. A li+re variant should be built. What did you take as a template? Have you oriented yourself to Remus, Eisenmann, Bastuck, .. … fixing methods. Which would be recommended? Comments please only for 132kw front (no Quattro), which is converted to left/right variant. …. Please no comments on the TÜV,…. 😉 Pictures would be great!!!!!