User Moparofficial not responding..
So not that it matters to me, I found the sale ad. The seller clearly shows the original Mopar Performance part number label on the original box. I see no fault on the sellers part. The buyer is responsible to know what he is buying.
All that being said, if I was the seller, I would probably refund the buyers money if he ships it back. But I would not pay the buyer's shipping cost to send the part back.