On April 15, 2015, Bover signed for New York Cosmos B. Bover was named NPSL MVP and captured the National Premier Soccer League NPSL regular season title with Cosmos B.
The Spaniard made his first appearance for the Cosmos' first team on June 13, 2015 in a 3-3 draw vs. Jacksonville Armada FC. On Aug. 4, 2015 the club announced he had joined the first team permanently.
Bover made 12 appearances and five starts, registering 544 minutes on the field during the 2015 NASL season. He scored his first goal with the top squad on Oct. 11, 2015 against FC Edmonton in a 3-0 New York win at Shuart Stadium. He helped the New York Cosmos win the NASL Championship in 2015.