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  • Set of six (6) Nostrum Stage 2 Upgraded Direct injectors for BMW N55 S55 M2 M2C M3 M4 Nostrum Stage 2 Upgraded Direct injector for BMW N55 S55 M2 M2C M3 M4 Nostrum Stage 2 Upgraded Direct injectors for BMW N55 S55 M2 M2C M3 M4 BMW M2 Competition on Nostrum Dyno BMW 435i N55 on Nostrum Dyno

    3.0L BMW S55-N55 Stage 2 DI Injectors

    What sets Nostrum apart: 55% Larger than stock S55 12% larger than EU5 M5 injectors   Direct Fit, no harness or spacers required  OEM decoupling rings pre-installed  Ethanol Compatible  OEM equivalent spray pattern  Every...

    MSRP: $1,799.00
    $1,599.00
  • Set of six (6) Nostrum Stage 3 Injectors for BMW N55 & S55 Nostrum Stage 3 Injector for BMW N55 & S55 Nostrum Stage 3 Injector for BMW N55 & S55 Arc flash image of Nostrum Stage 3 Injector for BMW N55 & S55 Spray pattern of Nostrum Stage 3 Injector for BMW N55 & S55

    BMW N55-S55 Stage 3 DI injectors

    What sets Nostrum apart: +85% Larger than stock <20.2 g/sec vs 10.9g/sec>  +31% larger than EU5 M5 injectors <20.2 g/sec vs 15.4g/sec>  +19% larger than the stage 2 injector <20.2g/sec vs 17.0g/sec >  Direct Fit, no...

    MSRP: $2,199.00
    $1,799.00
  • Nostrum Upgraded High Pressure Fuel Pump and Stage 2 Direct Injectors for BMW F80 F8x M2C M3 M4 S55 Dyno results for Nostrum Stage 2 S55 M2 Competition on Nostrum Dyno M4 on Nostrum Dyno Dyno results for Nostrum Stage 2 S55

    3.0L BMW S55 Stage 2 Bundle

    What sets the Nostrum S55 Stage 2 bundle apart: 36% more fuel pump flow than stock  Max operating pressure of 240 Bar Pumps require less install time than changing the vacuum housing  Kit designed to be fully reversible to factory fuel system...

    MSRP: $5,298.00
    $4,498.00
  • Nostrum Upgraded High Pressure Fuel Pump and Stage 2 Direct Injectors for BMW F80 F8x M2C M3 M4 S55 Dyno results for Nostrum Stage 2 S55 M2 Competition on Nostrum Dyno M4 on Nostrum Dyno Dyno results for Nostrum Stage 2 S55

    3.0L BMW S55 Stage 3 Bundle

    What sets the Nostrum S55 Stage 2 bundle apart: 36% more fuel pump flow than stock  Max operating pressure of 240 Bar Pumps require less install time than changing the vacuum housing  Kit designed to be fully reversible to factory fuel system...

    MSRP: $5,498.00
    $4,698.00
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