Precision Raceworks Stage 2 Direct Injectors for BMW N55/S55 F20 F21 F22 F23 F30 F31 F32 F33 F36 F80 F82 F83 F87 - High-Flow E85 Compatible - M135i M235i 335i 435i M2 M3 M4 - 55% More Flow

Stage 2 High Pressure Fuel Injectors for BMW N55 and S55 platforms

Unlock headroom for serious power with this uprated injector set from Precision Raceworks. Designed specifically for BMW turbocharged six-cylinder applications, these performance DI fuel nozzles deliver approximately 55 percent more flow than stock while retaining OEM manners. Perfect for road, track or fast road builds that need reliable fueling on petrol or ethanol blends, without sacrificing smooth cold starts and crisp throttle response.

Each unit is flow tested and matched as a set on dedicated high-pressure equipment for consistent cylinder balance. Ethanol friendly and flex-fuel ready, these injectors support tuning on popular software suites and are a proven upgrade on N55 and S55 engines in both rear wheel drive and xDrive models.

Why enthusiasts choose this upgrade

• Approx. 55 percent increase in flow for significant fueling headroom
• Supports big turbo and hybrid turbo power goals with dependable DI supply
• Ethanol compatible for E85 and blended fuels, as well as standard unleaded
• Rated to 250 bar rail pressure for high boost applications
• Individually tested then matched into sets for even cylinder-to-cylinder delivery
• Works with leading BMW tuning solutions including MHD, bootmod3 and EcuTek
• Backed by a lifetime warranty from Precision Raceworks

Real-world results from our workshop

At MJ Modifications we have installed these on multiple N55 and S55 builds. Customers praise the stable idle, clean part-throttle behaviour and strong fueling under sustained boost. If you want an injector upgrade that performs on the dyno and remains civil on the street, this is a superb choice.

Power capability

• Up to 950 whp on petrol in the right setup
• Up to 715 whp on E85 with appropriate supporting hardware

Figures are theoretical maxima based on injector capacity with a fully engineered fuel system and correct calibration.

Fitment and vehicle coverage

Direct replacement performance injectors for BMW models with N55 or S55 engines, including:

• 1 Series F20 F21 M135i
• 2 Series F22 F23 M235i and F87 M2, including M2 Competition for S55
• 3 Series F30 F31 335i
• 4 Series F32 F33 F36 435i
• M cars F80 M3, F82 F83 M4, F87 M2 Competition

Suitable for both RWD and xDrive variants.

Installation and tuning notes

• Calibration required after installation
• Supported software: MHD, bootmod3, EcuTek and other professional tuning suites
• Direct replacement of the factory units with coding and tune update

Want expert fitting in the UK We offer professional installation and support at MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check

Unsure on fitment Provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm compatibility before dispatch.

Key specs

• Maximum operating pressure: 250 bar
• Ethanol compatible, suitable for E85 and blends
• Flow matched set, tested on high pressure equipment

Part number

201-0260

Brand

Precision Raceworks

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Ready to increase fueling capacity on your BMW Place your order for the Precision Raceworks Stage 2 injector set and give your N55 or S55 the supply it needs for reliable power.