avision

I have been beating it with a 2/12lb sledge, if i cut it I will probably have to get a new front pipe too, I can see where it has already been cut and it is pretty close to where to hangar is. So I would prefer not to cut it, but I may have to. Any other ideas?

straightsixjeep

I want to replace the cat and muffler on my 98'. The o2 sensor bung is welded in on the exhaust pipe between the cat and muffler. Can I replace the cat with one that has the o2 bung directly in it?

CrawlerXJ

Spray some oil in there?

zombie jeep101

just cut the dang thing off and get so adapters to fit the new one on

CrawlerXJ

Save the battles for the wars. Be done with this.... Cut it...

straightsixjeep

Im starting to think they came from the factory with a catalytic converter with o2 bung in it because my muffler and cat is welded on and not clamped like others so it may not be original. Also If I replace the cat with one that has the o2 bung already in it, it will make it easier to just weld the muffler and cat together instead of having to put a piece of pipe between them with the o2 bung on it. Any ideas?
Looking at a cat like this http://www.ebay.com/itm/Magnaflow-53...e23431&vxp=mtr

CrawlerXJ

Same setup my 1997 has on it when I bought it. Looks stock. So, might have come that way. I replaced it with a Magnaflow. But went 2.5" from Manifold to tail pipe. But, your good to go!

I use this guy ultrarevparts
http://www.ebay.com/itm/310375779670...S:1123&vxp=mtr

straightsixjeep

Your saying that your downstream o2 bung is welded in between the cat and muffler, it doesnt screw into the cat correct?

CrawlerXJ

Mine screws into the cat. Just like the ebay link you sent.

straightsixjeep

Just double checking, thanks for the reply. So im ok to purchase that cat and relocate my o2 into it?

zombie jeep101

What's the best way to find a good deal on a vehicle in your area? I'm all over Craigs List but what about eBay or some other sites?

CrawlerXJ

Yes.

straightsixjeep

Awesome thank you sir

Keep on craigslist and dont jump on one just because its the only one for sale local, keep searching until you find the nicest one you can in your price range. Also, on ebay you can click the drop box on the right to narrow your search to "nearest first." Also you can check Adhuntr.com which used to be called, allofcraigs.com which searches craigslist nationwide. You can also narrow your search there to your region or your exact state.

NewKindOfClown

Ask people. Also newspapers and auto trader magazines.

avision

I got the cat off, no change. What would cause the exhaust to make this puffing noise? It doesn't do it on initial start up, but then begins after decelerating from freeway speeds, it does it at idle after that. I just failed emissions.

Video Link:
http://youtu.be/gatLqOancIc