this is an extension to a poop chute created by someone else for the right hand side of the P1S. There arent many chutes for the Right side and the one I found wasn't long enough nor steep enough to drop the poop into my bin so I designed this extension myself and it works well for me so I'm uploading it incase it helps someone else.

I would suggest measuring your own requirements and scaling the model in the slicer if required but it was a perfect snug fit for me without the need for fixings but holes are in the design if it helps