Upgrading Your Performance with p7100 delivery valves

Upgrading your p7100 delivery valves is often one of the first things 12-valve Cummins owners look into when they realize a simple fuel plate slide just isn't cutting it anymore. If you've spent any time on diesel forums or hanging out at truck pulls, you've definitely heard guys arguing about which "DV" is the best for a daily driver versus a dedicated competition rig. It's one of those modifications that can completely change the personality of your engine, making it feel like a totally different beast under your right foot. ...

February 26, 2026 · 7 min · Bernardino Junonia