These are the files for the cutaway version of the Subaru EJ20 that some of you may have seen on tested.com or engineering explained.
All the parts kit for the original EJ20 includes all the extra parts needed for the cutaway model which be found by clicking the link below.
https://www.makerrx.com/products/mrx2
https://www.youtube.com/watch?v=y5oRsvRH_Ig