Hi guys, new to the exhaust part of things, had some questions in regards to getting these to work in my ride: mk4 GTI; 2.8l vr6 12v I already know I’ll have to have a bung put in the headers so my questions are: 1) my catalytic converter is not good, does anyone know which universal or direct bolt on cat to use and/or test pipe? 2) does anyone have one of the mentioned above they’d be willing to part with for a small price? 3) anyone have any exhaust manifold gaskets they’d be willing to sell? Any tips on this install would be more than helpful, thanks everyone