you can do it yourself.

just a few stubborn bolts.

 

They should have an O2 sensor in the already, I got a muffler shop to do it. Although they are not supposed to, you'll probably have to ask around, and you will probably have to pay cash because the shop can't write it up. The bolts are VERY hard to get off, 14mm I think, and you will need some bolts and washers to put back on it because not all the bolts come off your cats.

 

So, Mike, I'll guess that your install went well. Please let us know the details. And, of course, how's the sound?