MKH wrote: ↑Sun Dec 05, 2021 7:34 am
The REx already has a muffler/silencer on it, this is a picture of it.
It would appear that the I3 silencer is inadequate or the exhaust design is too
cramped into a tiny space for an efficient sound reducer
Here is something which might be worth looking into
A Silencer Insert : attached or inserted in to the end of the exhaust pipe
pretty much similar idea as firearms sound suppressor. muffing muzzle noise