OEM exhaust parts wanted

This magnaflow cat I put on is giving me problems. The O2 sensor is getting bad readings which results in a bad fuel mixture on the diagnostics. So my check engine light comes on. Left my oem cat at parents garage after the install over a year ago and my father threw it away! Does anyone want to get rid of their oem cat? I'll pay premium shipping costs. thanks in advance

might help to mention I have a 2004 3.4L V6 manual 4WD.
I can weld the cat in if I have too.

 

I have a stock exhaust off a 2010. Not sure if it will work for you.

 

all I need is the rear one directly under the cab and since I'm welding it in I can make it fit. but can you send me a pic anyway and what you'd charge for shipping to Birmingham AL? Thanks

 

He threw away the CAT???? Just for future reference for anyone - they're worth $$ because there are precious metals in them that need to be recycled. Take old CATs to a local junkyard and they'll give you $$ for them.

 

I had the same issue on my truck when I changed out the exhaust, I installed TRD headers and the magnaflow stainless system. It took a while before the ECM was able to adjust, so depending on how long you have had yours on you might want to wait awhile before going back to stock.