Josh Gruis - UCC Competitor and owner of Jags Pro Truck Shop - joins Paul and Chris to talk about what's required to build a Cummins. The guys also remind all diesel enthusiasts to do their homework.
Special Thanks to our sponsors:
Wehrli Custom Fabrication WCFab.com
Exergy Performance exergyperformance.com
Calibrated Power Solutions calibratedpower.com
Duramaxtuner.com
