05 h2 hummer
 

just got back from stealership sayin all my codes on my sut is because of plugged uo cats... exhaust bolt broken on driver side into head, left side manifold is cracked! thanks gm for horrible exhaust syatems btw... question is can i remove my cats all together and put some o2 sensor elminators on there? where can i buy them from as well.. i rather not have any at all than mess with this problem again in future and i do not have emissions test here either btw so im all good on removing them..