Flow master mufflers add power and sound awsome.
All the O2 sensors on a 99 Chevy Silverado with a 5.3 engine are located in the exhaust. The are positioned on each side of the exhaust manifolds and just after the crossover.
The exhaust valves are smaller and lead to the exhaust manifold.
on the exhaust pipe one forward and back.
it is screwd into the exhaust somewhere near the converter
There are several and they are all located on the exhaust system.
They are screewed into the exhaust system/Pipes. There will not be any after the muffler.
there should be a couple of them screwed into the exhaust system.
No there is not, but that don't mean you don't have a leak somewhere. That is a old truck.
It has 4 and there all screwed into the exhaust system.
It is in the exhaust pipe where it comes off of the engine on the passanger side.
4 and there all screwed into the exhaust system/pipes.
V-8s are on the drivers side in front of the exhaust manifold.