Exhaust Mods- What to Do with O2 Sensors

[joesregalproject]

I am to the point on my car where i want to start modifying the exhaust, not really for performance gains so much as I'd like the car to sound not-so-grandma-ish. I don't have to worry about emissions. What I want to do is purchase the Kirban Performance test pipe, and replace my catalytic converter with it. This will allow me to bolt up a stock or aftermarket Grand National exhaust system, because i will now have a 4 bolt flange where my catalytic converter used to end. I will probably go with the Pypes system for Grand National. My questions in doing this are,

1.) What should I do with the physical 02 sensor hardware?
-Should I weld a bung in a reinstall them? Gut them out?

2.) What do I do to keep the engine running correctly once the cat is out of it? how can I keep check engine lights and codes from being thrown?

My reason for wanting to remove the cat instead of replacing with a high-flow unit are due to cost mainly.

Here are the two products I referenced-

Test Pipe-
http://www.kirbanperformance.com/pr...R+TEST+PIPE+&+4-BOLT+FLANGE+GASKET+#7422.html

Pypes Dual Exhaust-
http://www.kirbanperformance.com/pr...TEM+(Non-Polished+Stainless+Steel)+#6996.html

 

[lilbowtie]

It sounded like you were going to put an 8 in your car in which case I wouldn't waste the money. I'm pretty sure that it's a different bolt pattern from your exh to the test pipe. Lose the cat if you want but I would hook up an 02 if you are still using the computer.

 

[williamattop]

IIRC the o2 sensors dont care about the cats because they (02 sensors) are positioned before the cats. I could be mistaken though.

I eliminated the single tube section of my Y pipe and cats to run duals untill I can upgrade the entire set up on my SS. That was almost 2 years ago and no codes have been thrown to date.