Brothers a help

I have the owner of the 2004 307 Xs, broke the catalytic converter in the summer, cleaned the exhaust, dumped it, boiled down to the manifold so close to the manifold (my exhauster thought that the engineer on the tip of the engine could not reach) thought I could not go through the exhaust inspection and I looked at the exhausting prices, it seemed very frustrating, the exhaust prices started to come up. expensive 4000+ etc. etc. If I just buy a converter, will I get rid of that annoying sound universal? I still don't have an inspection.

You can not sell without examination. Two options, one is to rent a catalyst. Around 200-250 TL. Another option is to have a universal catalyst. the sound will be cut off.