Do you guys think an oil catch can is need for a ea82t. Only asking because my came with a prosport oil catch can installed but it was installed poorly. Should I fix the mounting and the hose routing or just remove it?

If everything is there, I would connect it properly.

I know my old EA82T could have used one and the current EJ probably could also.

Everything is there, the last owner used zip ties to mount the can.

If you have a lot of oil blow-by then keeping it could help with oil consumption. Otherwise you don't really need it.

 

Oddly my EA82T w/ 160k mi uses less oil than my '92 EJ22 in the other car.

Same, here. My EJ25D looses more oil via PCV system than my N/A EA82. I have a catch can on the EA82 and mostly just get water. It prevents some oil from reaching the intake when I'm on steep hills or off camber slopes.

 

I'd say definily get it working right for the EA82T, which would definily have more oil in the PCV system.

 

I'm thinking about installing the same kind of can on the EJ.