I have a Sachs Prima 5 with a 505/1D and want to put a chambered exhaust on it. I was wondering what I should upjet to and where to get the jet. Here is the exhaust I was looking at (https://www.mopeddivision.com/moped-make/sachs/2-piece-sachs-exhaust-kit-chrome-black/]Scahs Prima 2 part exhaust) would you recommend thus exhaust or another one.