No cats (dealership f*cked me )

So I bought this mustang from a dealership. It’s s550 model 10spd. Came with manufacture warranty & everything. So it’s a big dealer ship so I didn’t bother checking anything. A year l8ter I installed a x pipe & while doing it my mechanic pointed out there’s no cats
Right photo : driver side / left photo : passenger side

I was reading about the o2 sensors did this existing own use them ? Im new to all this modding .
I haven emission testing were I live and I gotta pass by Jan 8 2022 . Idek what to do dealer won’t install them . A tuner won’t get it off . I’m in nc rdu area , any tips would be ing amazing guys I’m so ****

90sickfox said:

If the check engine light isn't on they are either turned off in the computer programming or there are cat delete things plugged in the o2 sensor plugs. Sometimes people will use plug non foulers in the non catted pipe. You may be able to find someone local on a forum or FB group that may let you use or rent their stock catalytic converters and pipe.

Click to expand...

It’s on rn

90sickfox said:

If the check engine light isn't on they are either turned off in the computer programming or there are cat delete things plugged in the o2 sensor plugs. Sometimes people will use plug non foulers in the non catted pipe. You may be able to find someone local on a forum or FB group that may let you use or rent their stock catalytic converters and pipe.

Click to expand...

They’re installed too already idk why the CEL came on , it came on after I installed rhe x pipe