Their second album Diplomatic Immunity 2 was released in 2004 and reached #8 on the US R&B chart. As a solo artist 40 Cal. released his debut studio album Broken Safety in 2006. His second album Broken Safety 2 was released in 2007 and reached #3 on the Top Heatseekers chart and #12 on the Top Rap Albums chart. 40 Cal. also released the album Mooga in 2008. He has collaborated with several artists including Cam’ron, Jim Jones, Beenie Man, and more.