Project Exhaust Eigenbau For Pocketbike

Hello we bought a pocket bike with indicators, headlights etc for 200 euros a few years ago. We once drove with it, then this Chinading fell almost apart and ran only 30 kmh all the time. Since then it was only standing around in the basement. Now I decided to make the thing reasonable. So first of all the disguise was dismantled and first of all I noticed the exhaust. That is a single illness. Photos of it follow. So with the help of Java Pipe nn new But there are some questions that I would like to raise here.