Plugged cat? 2005 Chrysler van

[oil pan 4]

Yeah get that $48 ebay cat. You can't make a straight pipe fit better for less. Plus, you know, legality.

That's why the hammer drill clean out works so well. It still looks legal and works a little, maybe.

 

[Analog-1]

Eventually, registration will be a problem. Then you're screwed if they ask for the inspection sticker for new registration sticker. Then, no car.

OP I believe is in Indiana they only have emission testing in 2 county's unless he is in one of them he is good to bypass. Even if he was in a testing county the vehicle at 20 years old is likely exempt.