Checkvalved Breather
NOTE: For the V8 If installing the optional breather you must cap off the nipple on the front inner side of the passenger valve cover and eliminate the hose to the airbridge and cap that end off as well to prevent unmetered air from entering the system.
Make sure to apply some oil to the O-ring to aid in removal!!
On the V6, The tube that runs from the CAI (or stock airbox) to the rear of the drivers side valve cover needs to be deleted and both fittings capped.