Oil smell from exhaust under power

[codyk]

Was hitting an on ramp under about 75% throttle with a buddy behind me and says its a pretty strong oil smell coming from my car but that he didnt smell it while cruising behind me.
Was wondering if someone could point in the right direction of what needs to be replaced, ive heard turbos but i hope not.
Its a 2014 Sho Non PP

 

[76FoMoCo]

There is a egr valve upgrade from the green to the black. Some ppl know the part number but I can't remember it. It worked for me.

 

[Texas Marauder]

There is a egr valve upgrade from the green to the black. Some ppl know the part number but I can't remember it. It worked for me.

Actually, it's the PCV fitting on the front valve cover. The TSB applies to 2016-2017 model year and is for blue or white smoke after extended idling. The troublesome part is black. The upgraded part is green. Part number HL2Z-6762-A. The difference is the black part is a straight thru fitting. The green part has a restricted orifice.