I was wondering id someone out there has any information about O2 sensor bypass kit. I have a 1998 GMC Sierra and I want to get rid ov the cats so I can open up the exhaust.
If you have a state inspection where you live, and you do what you propose, your car will not pass it. It's a lot of work, anyway.
See I live in Canada and we have no emission requirements where I live. So I don't have to worry about not passing. And the lots of work is not a big deal to me.