smog

I recently deleted my secondary cats, still have the first. I cut em out and an exhaust shop welding some straight pipes in. They also welded the pipe that used to connect to the cats up. Is this going to be an issue? ( All I'm imagining in my head is pressure building up in this tube and...

I had a question about these cars, will they run any different with malfunctioning smog equipment? I have CEL emissions codes such as 332, 314, 311, 334 and 558 KOEO and KOER. Thing is I dont have smog in my state so I'm not too worried and don't wanna spend the money to fix it or delete it but...