His best Busch Series start was 26th and best finish was 7th in the Meijer 300 presented by Oreo race at Kentucky Speedway. Named the permanent driver of the #47 car in 2008, Bires had six top-ten finishes en route to a 13th-place points finish. But with Clorox/Kingsford moving up with Marcos Ambrose to the Sprint Cup Series, he was left without a full-time ride at the end of the season due to lack of sponsorship.
His most outstanding Busch Series performance was 26th place, while his best result was a seventh. In 2008, Bires became the permanent driver of the #47 car and achieved six top-ten finishes leading to a 13th-place points position. However, with Clorox/Kingsford moving up to the Sprint Cup Series and leaving Marcos Ambrose behind, he was without a full-time ride at season's end due to insufficient sponsorship.