It's common for the cat to plug after the plenum gets fixed (if it was leaking for a long time)

Might not be a bad idea to crawl under and make sure the heat shield didn't fall off the converter. (It will always be the hottest part of the exhaust)

You can buy a weld in converter or the whole Y pipe assembly. Converter only is cheaper but if your down tubes are iffy buy the whole deal it isn't much more.

I bought mine from Hottexhaust got it in 3 days. I went for the direct fit and installed it myself with no problems and no welding.

http://www.hottexhaust.com/search_re...2&txtCatName=2


I would recommend NTK brand O2 sensors as well. (They make the OEM for dodge)

 

I thought maybe I had a clogged cat too as I thought the 360 should just have more power but overall it doesn't seem to. I'm not too crazy about this motor. Eats a ton of gas and doesn't have much power to show for it.

 

O.K. guys have not been able to take truck to shop to have it tested because of the holiday. The other day when my wife noticed how hot the floor was, I was pulling my trailer. I just took the truck for the same ride with out the trailer and the floor board did not get that hot. Do you guys think it is normal for the it to get that much hotter pulling a trailer. My trailer is only 4x8 enclosed. About 900 LBS empty and it was empty the other night. Do you think I should have the CAT tested before I make a 900+ mile trip?

 

I had the back pressure tested and the CAT is good. They also checked my O2 sensor and they are working properly.