my y7 has a cat on it, will my car throw a code or anything if i replace it [exhaust manifold] with some aftermarket headers?

and btw.. anyone know how to take off an o2 sensor? the bottom o2 broke/bent really bad when someone kicked my header after i took it off -.- i know its gonna be hell getting a new o2 sensor since they cost like 200 bucks..

 

o2 sensors dont cost 200$, autosone has them for like 60-100$

and you can get aftermarket headers, they had a hole where you can put the o2 sensor in

and you can also rent a o2 sensor socket from autosone, its free i think with a deposit

 

i know they got the bungs for the o2 sensors, just was wonderin since my y7 has a cat built into the exhaust manifold, would it throw any codes or i won't pass smog or anything

 

ohhhh i didnt understand the qs sorry, your new aftermarket hearders wont have cat on it, so you have to buy a cat and put it on after the header

having no cat wont throw a cel but you need a cat to pass smog

 

ok, thanks! i didn't think i could get away with smog without one