Unlock reliable fuelling headroom on your S58 with this complete water methanol port injection kit for the BMW G80 M3 and G82 M4. Developed around the Fuel-It S58 billet port injection rail and Bosch EV14 injectors, it adds six supplementary low-pressure injectors to support serious performance on pump fuel and water/methanol blends. High quality BMS hardware and lines, a heavy duty DDP 5800 pump, and a stealth 3.5 gallon boot tank make this a clean, OE-style upgrade that is proven and dependable. Supplied by Nforcd for UK BMW enthusiasts.
- Purpose-built water methanol port injection upgrade for S58-powered G80 M3 and G82 M4
- Adds six supplemental injectors for increased fuelling capacity under load
- Choice of flow-matched Bosch EV14 42 mm injectors in 550 cc, 750 cc or 950 cc sets
- Fuel-It S58 billet port injection rail with all required fittings and hardware
- BMS DDP 5800 water/methanol pump with 200 psi bypass and 1.3 GPM open flow
- Stainless braided, PTFE-lined WMI hose with black nylon overbraid and BMS Elite AN fittings
- Stealth 3.5 gallon boot tank tucks into the left-side compartment, with rear sump and vented cap
- JB4 Port Injection Controller included for straightforward control of the added injectors
- Optional Fuel-It CANfuel Sequential Port Injection Controller available for advanced CANbus integration
The included stealth tank is designed to sit neatly in the left boot cubby used on G80 M3 and G82 M4 models, keeping luggage space clear while ensuring consistent pickup thanks to its rear sump. Available in transparent white for quick visual level checks or opaque black for a discreet look. The BMS DDP 5800 pump mounts directly to the tank for a tidy, robust installation. An upgraded billet tank cap with an integrated one-way check valve is available separately if you prefer a premium finish.
Vehicle compatibility
- BMW G80 M3 2021+ including Competition
- BMW G82 M4 2021+ including Competition
Note: modification is required for tank fitment on G82 M4.
What’s included
- Fuel-It S58 billet port injection fuel rail
- Six flow-matched Bosch EV14 42 mm injectors in your choice of 550 cc, 750 cc or 950 cc
- Burger Motorsports DDP 5800 water/methanol pump
- 15 ft stainless braided, PTFE-lined WMI hose with black nylon sheathing
- JB4 Port Injection Controller with relay, inline fuse holder, power wiring and connectors
- -6 AN ORB fitting and -6 AN ORB plug, plus 1/8 NPT plugs
- Mounting screws for the rail and pump
- Injector installation jig, fixing screw and 21/64 drill bit for factory boss preparation
- Superlube
- 3.5 gallon stealth boot tank with 2-way vented cap, compression feed fitting and 18 in of 1/4 in nylon meth line
- Tank mounting hardware including brackets, grommets and fasteners, plus AN adapters
Nforcd knows this kit well and it has been a popular choice for G8X owners seeking dependable fuelling support for higher power goals on pump fuel and water/methanol. Order today for fast UK supply. Professional fitting is available at Nforcd in Warwickshire. To request a fitting quote, email Sales@nforcd.com.