Need Options on Catalytic Converters for 01 Pathy

[2blue]

I'm looking for the best direct fit cats for my 2001 Pathfinder. I've found that some of these replacement units fail pretty quickly; any recommendations for a quality part?

[atraudes]

I used some Walkers (16343 and 16344) that I bought on Amazon 2-3 years ago and haven't had any problems. I think Magnaflow and Bosal make cats for us too, and they're pretty reputable brands from what I hear.

They'll all fail regardless if you don't address the source, though, so make sure you've identified why they went bad. They don't go bad on their own

[Donnie Idaho]

I am new to the forum, thanks for all the great information! It seems like my cats need to be replaced every three years or so, and at $1500 a pop makes me think about getting rid of my 2001 QX4, ~184K. So, the post by atraudes caught my attention when he states that cats don't go bad on their own. Can someone elaborate?

Thank you.

[PathyPop]

Anything that would cause unburned fuel through the exhaust can cause the cats to run hotter than they should and/or contaminate them. But, $1500 for a set of cats for your QX!? Must be the dealer? Go to an indy shop if needed again. I have a $900 receipt from the prior owner for the PF I just bought and I thought that was too much. They bolt on fairly easily.

[Donnie Idaho]

It is a Firestone shop. It has happened to me once or twice before and it has always been $1500 regardless of where I take it too. It seems to be a real shake down. Thanks for the insight. I will look for someone who may be able to replace the Cats AND determine the cause. Thanks PathyPop!

[Buzzman]

Agree with atraudes: They don't go bad on their own. If they are failing every 3 years or so, then you have another problem.
I still have the originals on my 2002 Pathfinder. Over 300,000 Kms and no issues.

[Donnie Idaho]

Thanks for the information, it will help me ask better questions!