Based on tuning products made for the 1st Generation Dodge Ram the boost pin allows you to get more travel from the internal workings of the Bosch VE pump. The standard Bosch boost pin is used to restrict fuel delivery until boost pressure is added to the engine. Is consists of an off centre conical ramp which gives different profiles depending on orientation. While adjusting this gives good improvements in performance you can not unleash the full potential of the VE pump. This modified boost pin allows the VE pump to access full fuel delivery given sufficient boost pressure which will improve your vehicles performance. Works well with our Dynamic Timing Advance Spacer Kit.