6.7L Ford Power Stroke Thumper 33% 10.3MM CP4.2
"RCD CP4 Common Rail Pumps offer the highest displacement in the industry. They start as all new genuine Bosch parts that are modified with a industry leading cam design, tested and then shipped to your door. We will not sacrifice quality for a lower price. "
This 10.3MM high pressure fuel pump displaces 48% more fuel than the CP4 pump on the 11-14 6.7 Powerstroke and 33% more fuel on the 15-17's! We have dyno tested well over 800RWHP with this pump and turbo mods.