BMW Universal Return Fuel Lines w/ RegulatorThe Precision Raceworks N54 Return System with Pressure Regulator is designed to work with most BMWs with a fuel pump located on passenger side of car. (see fitment guide for specific models) This kit allows users to run custom fuel pressures exceeding that of the factory system. This system features a 1: 1 boost referenced fuel pressure regulator, 6AN fuel return line, Bulkhead fittings to add return port to tank, and all other necessary brackets and
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