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Dead Parrot · 09-24-2023, 08:36 AM

There is or was a belt driven air pump that connected to those pipes. The AIR system is only needed if you are in a strict emissions area and your truck is still subject to emissions inspections.

09-24-2023, 08:36 AM	#6
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,504	Re: What is it? There is or was a belt driven air pump that connected to those pipes. The AIR system is only needed if you are in a strict emissions area and your truck is still subject to emissions inspections.