AFAIK Uni doesn’t disable anything. It passed rediness 2 years ago with the same tune (k04).
I run a J spacer but I took it out earlier today and fired the car and let it come up to operating temp. That’s when I noticed the data not reading. I’ll email them tomorrow and ask. Not sure how I got ready 2 years ago tho.
I have CBFA and don't run a spacer. 99.9% sure Uni disables the CEL. Haven't had an issue with inspection here in CT yet.