The band's lyrics mainly focused on environmental issues (with open support to radical groups like Earth First!), but also concentrate on social issues. The band also supported the decriminalization of marijuana.

Exit-13 underwent a line-up change prior to 1994's Ethos Musick, and recruited the rhythm section of Dan Lilker, famous for his work with Anthrax, Nuclear Assault and Brutal Truth on bass guitar, and his Brutal Truth band-mate Scott Lewis on drums. Brutal Truth's vocalist Kevin Sharp also provided backing vocals.

Future line-ups were to include Bliss Blood (Pain Teens), Richard Hoak (Brutal Truth) and Dave Witte (Burnt By The Sun, Discordance Axis and Municipal Waste), amongst others.