you have one catalytic converter and then you have a resonator in front of the catalytic converter! if you are looking to remove the catalytic converter just purchase a magnaflow universal with the part number 94105 and some 2 1/4" clamps or weld them on if you are looking for a professional style install
and another little thing for you to know! if you have a 4.3 that is 1998 or newer take your air-box out and look into the MAF sensor and the little honeycomb cover that slows down air... well just punch it out with a screwdriver and there you go! 15hp boost and 1-2mpg better
just be careful on the sensor because if you hit one of the prongs you are screwed...
and be careful on your catalytic converter because the oxygen sensor is directly behind it so i recommend using WD40 and letting the bolt soak overnight for easy removal and be careful to remove the plug that sits on the frame for the 02 sensor because if you aren't you are looking at a 40 dollar replacement... or just do like me... straight pipes and a dummy sensor
The catalytic converter is found in the exhaust system between the engine and the muffler.
It is located in the catalytic converter
In the exhaust system, before the muffler.
After the catalytic converter.
That would be the O2 sensor after the catalytic converter.
Bank 1 catalyst efficiency failure. The catalytic converter has failed.
That should be the O2 sensor just before the catalytic converter.
That should be the sensor located after the catalytic converter.
Nowhere. It attached to the exhaust pipe, not the engine.
To pass emissions you do.
Catalyst efficiency below threshold. (The catalytic converter may be failing.)
Could be a plugged fuel filter or a plugged catalytic converter.