the new 6.6 gas has two pvc valves one for each valve cover. you will need a catch can with a double hookup or two cans. you will need a cap for the air plenum fitting above the throttle body. you will need a carb sticker in california
there are two pcv valves on the new 6.6 gas one on each valve cover up front by the throttle body. you will need a carb sticker in california or remove it at service or smog inspection.you will need to cap fitting on air intake.
if you have a new 6.6 gas you will need a can with double hookup or two separate cans for two seperate pvc valves one on each valve cover also if you are in california you will need a carb sticker.