New Bosch rail pressure relief valve, do not compromise the integrity of your system with a plug. Pressure spikes can cause severe damage to system components.
Motorsport Diesel Single Stage Relief Valve / Rail Plug Alternative New BOSCH rail pressure relief valve modified for single stage operation; not to be confused with rail plugs! This relief valve corrects common issues that plague the stock relief valve such as: rail pressure fluctuations and general drive-ability issues. The stock valve that comes from [...]