that would be the downpipesThe center pipe (I believe) comes off the engine down to the catalytic converter. So the full set up is Center Pipe-Cat-Cat Back Exhaust. And No, it's not needed.
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that would be the downpipesThe center pipe (I believe) comes off the engine down to the catalytic converter. So the full set up is Center Pipe-Cat-Cat Back Exhaust. And No, it's not needed.