PPE 113072000 Fuel Release Valve Shim Kit

The Release Valve Shim Kit increases the pressure needed to "pop off" the pressure relief valve (PRV). This means that the available fuel rail pressure remains high during heavy engine loads and reduces the fuel flow through the fuel return system. The PPE Release Valve Shim Kit eliminates low fuel rail pressure DTC codes P1093 or P0087 (low fuel rail pressure during power enrichment).

Available for:
GM Duramax 2004.5 - 2010 LLY/LBZ/LMM
Dodge Cummins 2008-2010 6.7


*Note: Legal in California only for racing vehicles which may never be used on the highway.