In 1998 they entered the NB I. under the name "Dunaferr SE" and won their first and only Hungarian championship in 2000. In 2001 they finished 2nd behind Ferencváros . In 2003 they were relegated from the NB I. At this point they had played 20 seasons in the top division. Unfortunately the Dunaferr company ended their support of the men's football team, and in 2004 when the NB I. returned from a 12-team format to a 16-team format they were unable to return and all football operations ended.