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  • N63, N74, N54 Injector Update

    BMW’s direct injected engines have had a little rough going early on namely in the N54, which thankfully has been improved with warranties and parts from BMWNA that have corrected the High Pressure Pump (HDP) failure. But the fuel injectors have had their share of issues throughout with no extended warranty offered from BMW. Thankfully new injectors were recently released from BMW for the N63, N74, and N54 with “improved internal filtering” and “special thermo compensating oil”. Unfortunately the new injectors have “calibration” and “construction differences” that prevent them from being intermixed with older style injectors “index 10”, but they …

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