Hello Andrew,
If you have the MEX1107 you have the straight through louder box. The baffled version is a the MEX1105.
![[Linked Image]](https://dl.dropboxusercontent.com/s/6hxh5z31sl81s8m/silencer3.jpg)
Maybe not an option for you in Switzerland but i do have a nice MEX1105 (from a 2016 car) surplus to requirements that I bought second hand but not needed. At some point I was going to put it in the For Sale section for sale or exchange for a MEX1107 in similar condition.