Where does a diesel enthusiast go for the latest, greatest gathering of diesel stuff - the DPI Expo! The Expo returns to Indianapolis, Indiana Lucas Oil Raceway May 4 - 6th, 2018 and features more than 100 vendors as of December 2017. More than likely, there will be dozens more by this spring. James Brendle and Chris Searle, organizers for the DPI, stopped by the podcast to go over the details and explain how the expo is becoming THE event of the diesel performance industry.