I spent a long time measuring and doing different renditions to get this to fit basically perfectly. The only other STL's  I could find people were charging $10-20 for and that's not what the e36 community is about, however if you can give me a boost I would appreciate it!

This is for a chassis mounted shifter, I will be uploading another with a larger shifter opening for those with factory shifters or not such short shifters.

For RHD put into slicer then right click the model and select Mirror then select along Y axis