Genuine RS4 Fuel Pressure Return Valve (FPRV) - Fits 2.0 TFSI EA113Genuine RS4 135 bar Fuel Pressure Return Valve This part is required for Stage 2+ tunes on TFSI EA113 engines. The RS4 FPRV is rated to 135 Bar which allows the engine tuner to raise the fuel pressure for Stage 2+ TFSI engines. Please note: Upgraded HPFP internals are also required to raise the fuel pressure. Click here to view the product page for the upgraded internals.
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