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For years, I thought that this was a converter....
The truck has a 5.7, I've owned the truck since it was new. I removed the huge muffler and resonator that were further back when the truck was still new but I never touched the exhaust forward of the Flowmaster you see here:
I always assumed that the barrel shaped unit running fore/aft ( right near the end of the transmission) was a downstream converter but looking at it in the picture here, I wonder if I have it wrong. It has no oxygen sensors near it. Whether or not it is not a catalytic converter, these trucks had a really busy exhaust system.
The truck has a converter just below each exhaust manifold, each side have an upstream and downstream O2 sensor. From there the left side meets the right to form a single pipe then into this thing. In stock form, from there it went through a 14" diameter barrel shaped muffler about 28" long, terminating at a small resonator just behind the right rear wheel. These trucks sounded like a sewing machine when new.
Do these trucks have three catalytic converters or is this something else?
The possible upcoming changes to the EPA mean that removing emission controls won't incur any fines or penalties. I'd love to have this truck rumble like an older truck.
The truck has a 5.7, I've owned the truck since it was new. I removed the huge muffler and resonator that were further back when the truck was still new but I never touched the exhaust forward of the Flowmaster you see here:
I always assumed that the barrel shaped unit running fore/aft ( right near the end of the transmission) was a downstream converter but looking at it in the picture here, I wonder if I have it wrong. It has no oxygen sensors near it. Whether or not it is not a catalytic converter, these trucks had a really busy exhaust system.
The truck has a converter just below each exhaust manifold, each side have an upstream and downstream O2 sensor. From there the left side meets the right to form a single pipe then into this thing. In stock form, from there it went through a 14" diameter barrel shaped muffler about 28" long, terminating at a small resonator just behind the right rear wheel. These trucks sounded like a sewing machine when new.
Do these trucks have three catalytic converters or is this something else?
The possible upcoming changes to the EPA mean that removing emission controls won't incur any fines or penalties. I'd love to have this truck rumble like an older truck.
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