Unlock the fuelling headroom your BMW N55 deserves. Nforcd’s port injection solution adds six supplementary low pressure injectors to support high power builds on performance fuels such as E85 and methanol, while working alongside the factory direct injection system. Designed for F-chassis N55 applications and widely used by enthusiasts, it is a proven upgrade for reliable, consistent fuelling at elevated boost and ethanol content.
- Adds six supplementary low pressure injectors for stable fuelling on ethanol blends including E85 and methanol based fuels
- CNC machined, anodised manifold spacer available in Basic or Elite specifications for long service life
- Includes installation hardware, gasket set and a plug and play fuel line adapter for a clean, OE-like install
- Elite kit features black anodising, an additional return port, upgraded fuel line and expanded machining to accommodate further applications including S55
- Basic kit suits E and F chassis N54 and N55 engines, Elite kit also suits E and F chassis platforms including S55
- Supports serious power goals when correctly specified and calibrated, with potential for 1000+ whp on appropriate setups
Vehicle fitment for F-chassis N55
- 1 Series: F20 F21 M135i 2012 to 2015
- 2 Series: F22 F23 M235i 2014 to 2015, F87 M2 2016 to 2017
- 3 Series: F30 F31 335i 2012 to 2015 including xDrive and ActiveHybrid
- 4 Series: F32 F33 F36 435i 2014 to 2016 including xDrive and Gran Coupe
- 5 Series: F10 F11 F07 535i 2011 to 2016 including xDrive and ActiveHybrid 5
- 6 Series: F06 F12 F13 640i 2011 to 2016 including xDrive and Gran Coupe
- 7 Series: F01 F02 740i 2013 to 2018 including xDrive
- X Models: F25 X3 2011 to 2017 including xDrive, F15 X5 and F16 X6 2014 to 2018 including xDrive, F26 X4 M40i 2014 to 2018
Optional intake manifold upgrade
Prefer a complete manifold solution Instead of a spacer, a direct fit high flow aluminium intake manifold with integrated port injection bungs is available. It replaces the factory plastic N54 N55 manifold, positions the injectors on top for easy access and optimal spray pattern, and provides expansion vacuum ports for accessories. Supplied with quality O-rings and hardware, and available with or without the additional fuelling hardware.
What else you will need
To complete your port injection setup you will require a dedicated fuel feed line, a set of flow matched injectors and a suitable port injection controller. These components are available separately and can be added to your package.
Nforcd knows this upgrade inside out and it has been a popular choice with customers building reliable, high power N55 cars. Order with confidence or get in touch if you need help choosing between Basic and Elite to suit your goals.
Fitting is available through Nforcd in Warwickshire. To request a quotation, email Sales@nforcd.com.












