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**'68OrangeSunshine** · 12-07-2023, 10:36 PM

I was looking at a 2003 4X4 Tahoe, ex cop car today. It came from out-of-state, [NM], where Cats are not required, I'm told. I hear they are required in AZ, where it would have to be registered.
When I looked underneath, I saw one big muffler, both exhaust pipes fed into, and a single 4'' exhaust pipe out the rear that looked factory.
Motor is a Vortec 5.3. Could there be a catalytic converter inside, or would it need to be installed for AZ ADOT/MVD regulations?

12-07-2023, 10:36 PM	#1
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,068	'03 Tahoe Catalytic Converter I was looking at a 2003 4X4 Tahoe, ex cop car today. It came from out-of-state, [NM], where Cats are not required, I'm told. I hear they are required in AZ, where it would have to be registered. When I looked underneath, I saw one big muffler, both exhaust pipes fed into, and a single 4'' exhaust pipe out the rear that looked factory. Motor is a Vortec 5.3. Could there be a catalytic converter inside, or would it need to be installed for AZ ADOT/MVD regulations? __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.