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.
New BOSCH rail pressure relief valve modified for single stage operation. This valve corrects a common issue of rail pressure fluctuations and drive-ability issues inherent with the stock valve. In stock form the valve is a dual stage design, where once the valve opens due to system over pressurization it remains held open until the [...]