02 sensor

[lewisb13]

I have an 04 2500 HD. Do this thing have an O2 sensor after the cat? I guess Im asking because Id like to get an exhaust that doesnt have a catalytic converter and I dont want the damn thing throwing codes. Thanks in advance the help I have recieved on here has been invaluable. :great:

[wreckedthenbuilt95]

is it the 6.0 or the duramax if you run with out a cat after 95 it will screw up the fuel system youll run too rich and after awhile itll mess up

[lewisb13]

Its the 6.0. Thanks for the info! :great:

[vncj96]

you can get a custom tune and have it deleted, but if you have to have inspections done obviously you will get nailed

[wreckedthenbuilt95]

the tbi can run fine with out a cat but it wont pass emissions i got more power and better gas mileage i live in tyler dallas is 2 hours away about 100 miles from here i filled up before i left tyler and got to my hotel right after it came off the full mark i got such kick ass mileage lol

[Bluewater]

Do you realize it is a federal offence to alter or tamper with the 02 sensor or the cat. converter? might want to think it thru. Not trying to be a downer. Just some FYI..

[lewisb13]

Yeah we dont have emissions in my neck of the woods. This will also be the first vehicle that Ive owned in my whole life where I might actually KEEP the cats. Thanks for the comments, I was just wondering if there was an o2 sensor after the cat. There shouldnt be anything else affected by removing the cats.