They installed a removable plate in the bottom at some point, so in theory the air filter could be removed without all that effort...
![[Linked Image]](https://www.tm-img.com/images/2021/04/17/Air-filter.jpg)
I took this photo in the factory in 2017 of a Plus 8 in build, and it shows the air box, but I'm not certain how the clips could be undone to allow the filter to be replaced...
So it is still a bit of a mystery.