The competition is quickly getting more difficult. Dave and Kev divide the group into two teams, and explain the day's assignment -- navigate a tricky exhaust challenge. The losing team will have to make a difficult choice.

It's every contestant for themselves now, starting with a rusted out, dented fender that needs repair. At the last minute, Dave and Kev throw a major-league curveball after they decide that the challenge is a little too easy.