The decision to leave the band was made in October 2002,[4] towards the end of the touring cycle for Morning View, and his final performance with the group was on November 1, 2002.
[9] In 2012, Katunich joined forces with his first bass teacher Stray Deuce and Germany native Alexa Brinkschulte to form Willie's Nerve Clinic.
[10] In September 2013, Katunich and former bandmate Jose Pasillas II, along with former Pharcyde MC Slimkid3 and Jurassic 5's DJ Nu-Mark, under the name 4 Player Co-Op, released the song "Picture Perfect Phantasy", inspired by the video game Rayman Legends.
[11] Katunich spent the 2010s with Willie's Nerve Clinic before joining with Kyle Mortensen to form his current band and latest collaboration East of June in 2019.
[15] As he grew older, he began to be influenced by bassists from funk metal bands, including Robert Trujillo of Infectious Grooves, Les Claypool of Primus, Trevor Dunn of Mr. Bungle and Billy Gould of Faith No More.