3.0L BMW N55 High Pressure Fuel Pump Kit

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Nostrum HPFPs increase the capacity of your fuel system and ensures you are getting the most out of your fuel system components. Nostrum HPFP kits feature a larger piston diameter than stock, a premium welded construction, and several in-house components. Nostrum HPFP kits are designed in Computer Aided Design (CAD) and optimized using Computational Fluid Dynamics (CFD) to ensure you have the highest performing product on the market.

Nostrum HPFP kits always include all the accessories and parts you need for hassle-free installation such as electrical connectors, low-pressure fuel lines, high-pressure fuel lines, and hardware. A step by step installation guide is also included to make installation of your Nostrum HPFP kit even easier.

Every single Nostrum HPFP is dynamically bench tested for flow rate and pressure control by our technicians. This guarantees that your Nostrum HPFP only ships out if it meets our OE quality and performance standards.

Vehicle application list:

2011–2015 F30/F31 335i
2013–2016 F32/F33/F36 435i
2013–2015 F30 ActiveHybrid 3
2013–2016 F22/F23 M235i
2015–2016 F20/F21 M135i LCI
2012–2015 F20/F21 M135i
2016–2018 F87 M2 (Non-Competition)
2013 E8X - 135i
2013-2017 F10/F11/F07 535i
2013-2017 F25/F26 X3/X4 35i
2014-2019 F15/F16 X5/X6 35i
2013 E9X - 335i
2013+ E84 - X1 35i
2013+ E70/E71 X5/X6 35i
2013-2018 F06/F12/F13 640i
2013-2015 F01 740i/Li

Dyno graph sponsorship results:

Certified tuner:

David Shoup
Cary Jordan
Paul Johnson
HC Performance

Frequently ask question:

Q: Why don't I see horsepower gains with just a pump?

A: Fundamentally we have to look at the entire fueling system and "where" in the rpm range the limits are. DI fuel systems in stock trim are often pump limited at middle rpm (peak torque) and injector limited at high rpm (peak power). This is due to engine speed. HPFPs are mechanically driven pumps (driven by the camshaft pump lobe spinning at ½ crank speed) and are RPM (engine speed) dependent. Many of the quoted flow increases in the aftermarket are purely displacement based comparisons: where by example the big bore pump has a piston diameter X% larger than the "stock" pump or the swept displacement ((3.14*(radius)^2)*(stroke))of the pump Y% larger than the stock pump. The larger displacement of the pump really shines in low rpm, where the fuel injector has plenty of time (crank angle degrees) to inject fuel. As the engines starts to approach peak power the engine speed starts to become quite short and is limiting the injection duration (crank angle degrees) for the injection event (which is another reason why we like to increase fuel pressure up high!).

Q: Can you make N54 injectors or pumps?

A: Unfortunately the N54 di injector is a piezo-electric outwardly opening injector. This is a significantly different injector design than the very common solenoid activated multi-hole injector. We have tried in the past to work on these injectors but the crystals tend to crack, rendering the injector useless. So unfortunately we were not able to modify them or make a high performance replacement at this time.