I am not sure if there has been a post about this in the past so im posting this question. Now, I haven't crawled under to check, but I was wondering if anyone knew off the top of there head if there are 02 sensors associated with the CAT for a 95 Dodge Ram 1500. I was thinking about removing it for more sound in the exhaust when I put my dual system in. It is an OBD I system. I plan on crawling under there this weekend to map it out.

Thanks for your input...

__Sully

 

There is two, one pre cat and one post cat. Save yourself some aggravation, and look into getting a Magna Flow cat. The added sound will be almost like having no cat.

 

I have a 95 and it only has a precat o2 sensor

 

+1 95 only have one precat,,,,,,,,,,,,i've all so have been thinking duals

 

Sorry, your right. Rock Auto lists a post cat sensor also which is most likely for California.

 

yep, theres only one and its in the front side of the cat

 

Thanks guys...I think ill be under the truck with a recip saw and some new piping this weekend!!!...

 

FWIW, I just gutted my cat 2 weeks ago. I removed the exhaust downtubes and cat, cut the cat open, emptied the cat and welded it back together.

It runs so much better and no O2 codes. Plus I got a deeper exhaust note too.

 

when you guys say gutted cat, what do yall mean by that?

 

you can get a magnaflow cat from summit for fairley cheap. Thats what I did with mine when my cat went out because the emission laws in GA require me to have some kind of cat. The truck runs alot better. Behind my cat I have a flowmaster 40 series cat back system and with the magnaflow cat it dosnt even sound like a normal 40 series its so loud people ask me all the time if I have strait pipes and a cop even stoped me and looked under my truck once to make sure I had a legal muffler.