In 2018, Starr joined Jimmy Means Racing for a full season, replacing Joey Gase. He returned to the Cup Series to drive the Rick Ware Racing No. 51 car at the 2018 Brickyard 400, where he finished 39th. Starr drove the No. 97 Toyota Camry in Obaika Racing's Cup debut at the 2018 1000Bulbs.com 500 at Talladega. When Starr and Obaika failed to qualify, they attempted the race at Starr's home track of Texas a few weeks later, where they did make the race. He returned to Means in 2019 for another full season in the No. 52.