I purchased a "pair" of these Air Dam Covers and was very happy with the product. I did the install and it was very easy. The only issue was ordering the product. The on-line site did not indicate that they came in a pair, I ordered two (2)of the Air Dams thinking I had to buy two separate pieces. Upon arrival there were two "sets". No problem, after I installed one set on my 2500 HD a friend was so impressed with the look of them, he bought the other set. Great product, would recommend this to others that wanted to enhanced their 2500!