An interesting channel about Zongshen RX3.
 

Coincidentally, looking for information on ecu hacker I found a channel on youtube probably from mexico where there are many interesting facts about the RX3 for example, what the muffler looks like inside the channel has a translation I recommend taking a look.
https://www.youtube.com/channel/UCkr...GEronhA/videos

Wondered if it made it quiet.

Great find Lukas
This guy is skilled at making tech tutorial videos!
His research on a quieter pipe is very interesting as are his calibration videos.

Lukas, you have installed an 84cc bore kit along with tuning via Hud Hacker, what about your cooling system did you change thermostat or fan switch?
Is the muffler (silencer) louder than stock? I want to make my exhaust quieter. I have almost 31000 miles on mine, csc put a new head and stock cylinder piston kit in mine at 29,500 miles so im 1000 miles into break in.
Your comments about the bike “shooting out from under the ass” made me laugh! So i think that you are now running a less aggressive tune.
I just downloaded Hud Hacker and acquired an pair of adaptors. Im interested in your current tune. Can you share your average fuel consumption?
I found your youtube videos so maybe some answers are there too ill be watching some videos after posting.
Also, what is your experience with the large front brake disc kit?
Thank you.