Cat. Converter Question!!!

Ok so my Converter went bad just recently. I plan to just put a straight pipe in, replacing the old converter. Do I need to purchase an O2 Sim. after I do this? Is it ok to run with the stock O2's without a converter???

Need to know this, lol.

Thanks for any help,
Brandon F.

P.S. Happy New Yearshttp://forum.camarov6.com/images/smilies/popcorn.gif

First you hook up the flux capacitor to the Mr. Fusion reactor and presto.
The o2 sims don't really work that good. You should get the rear o2's disabled. Or just get a high flow cat. What engine do you have? how many cats do you have?