its about 2.5" but that is from the headers to the muffler and the tail pipe is 3"
depending on the size of engine 5.7 lt (350) is duels into the muffler of 3in pipe and single 3in out to the rear of truck 5lt (305) 2in y pipe to cat and duel 2 inch tail pipes (454) 3in same as 5.7lt
They are 3 to 4 inches long with an electric wire coming from them and they are screwed into the exhaust pipe's. there will not be any after the muffler.
In the exhaust pipe, near the engine.In the exhaust pipe, near the engine.
In a 1998 Jeep Wrangler, the oxygen sensor is located in the exhaust pipe. It can be found just below the junction of the exhaust manifold and the exhaust pipe.
on the exhaust pipe one forward and back.
2.25
yep
2"
== ==
That will be the passenger side head. Look at where the exhaust pipe bolts to the exhaust manifold and it will be the first 02 sensor you see starting there and moving down the exhaust pipe.
1-7/8
It is in the exhaust pipe where it comes off of the engine on the passanger side.