A couple of kittens have taken up sanctuary in the spare tire compartment of my car and I have no idea what to do with them.

Wait, no. That's not it at all.

I feel like my catalytic converter is holding me back. It's old, it's getting clogged, and in a state with no emissions and plenty of people rollin' coal so I honestly don't feel bad for murdering the polar bears by not having one.

My question is: will taking a crowbar/ice pick/sharp object and jabbing my catalytic converter until most of the honeycomb is missing alter my exhaust note much, and will it affect economy/power? Keep in mind I already have a rear o2 sensor delete.

I'm not worried about air turbulence in the jagged remains of the converters guts because I need the backpressure. The rest of my system is so free-flowing I fear that without at least some turbulence in the converter there won't be any backpressure whatsoever.

A picture of moar overrexaggerated HDR.