Will a catalytic converter from a ej1 fit on my ej6 hatch?

 

with a lot of modding, yes. also not obd2 compliant, but that's up to you.

 

it bolts up fine. im using a complete ej1 coupe stock piping on my ej6 sedan right now.

but then again, i am using a chipped obd1 ecu for my car so idk bout check engine light part, but i do no it bolts up perfectly.

 

my check engine light was on so i went to o'reilly's and they checked and the diagnostics said O2 sensor or a a catalytic converter, and i noticed there's a little ticking at idle.