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Fuel-It! water/methanol port injection kit for BMW S58 G80 M3 / G82 M4
FUEL-IT!

Fuel-It! Water/Methanol Port Injection Kit — S58 (G80 M3 / G82 M4)

$1,685.00

Fuel-It! water/methanol port injection kit for the S58 — G80 M3 and G82 M4. The same six-injector port setup, but spraying a water/methanol blend instead of fuel — charge-cooling and knock suppression that makes strong power even on pump gas.

What it is

A Fuel-It S58 billet rail with six injectors, a high-output water/methanol pump, a stainless-braided meth line, a controller, and a 3.5-gallon stealth trunk tank. It supplements combustion cooling rather than adding fuel; it pairs well with E85 or pump-gas builds chasing knock margin.

Options

Three choices, all selectable in the configurator. Injector sizing — 550, 750, or 950cc — sets how much fluid the six ports can flow. Controller is either Standard or CANfuel Sequential, Fuel-It's CAN-bus sequential controller. Tank Color is Black or White, the cosmetic finish of the 3.5-gallon stealth trunk tank.

Where it fits in the build

Charge-cooling and knock suppression for high-power S58 builds. We tune the engine to the system to use it.

Fitment

S58 — G80 M3 / M3 Competition (direct fit), G82 M4 / M4 Competition (tank fitment may require modification). Confirm your chassis in the selector.

Sourcing fueling with the tune? The Fueling Kit — S58 bundles the matched parts + calibration for 8% under à la carte.

Fits engine S58
Fits chassis G80 · G82
Category Fuel
Manufacturer Fuel-It!
What this is

A Part Recalibration is one focused revision built around the part you just bought. We take logs on your car as it runs now, on your current tune, then make a single full revision so this specific part delivers what it should. Hardware only does its job with a calibration shaped around it.

We bundle that tuning with the part right here, whatever brand the hardware is. If you want a fresh start across all your hardware, a Full Tune is the step up: a new base map, three revisions, and a written report.

This is a bootmod3 calibration. We tune through your own active BM3 license, so you'll need bootmod3 active on your car to load it.

Ships from Boca Raton, FL.

Step up to a Full Tune?

You've added a Part Recalibration to more than one part. At that point a complete tune does more for you: a Full Tune lays down a fresh base map and three revisions so all of your new hardware is dialed in together, with a written report at the end. We can roll your recalibrations into one Full Tune for $395 — below our standalone Full Tune, which starts at $495 for a four-cylinder and $595 for a six.

The Full Tune is a bootmod3 calibration — it loads through your active BM3 license, the same one you confirmed for the recalibration.
WHY WE SHIP FUEL-IT!
Fuel-It! builds the LPFP and HPFP upgrades and the flex-fuel sensing kits that make running ethanol a clean, repeatable thing instead of a guess. Their ethanol-content sensing lets a calibration read actual blend in real time and adjust, which is what makes a flex-fuel build safe to daily. We use Fuel-It! parts where a customer wants the gains ethanol gives but needs the fuel system and the sensing to handle a tank that is never quite the same mix twice. It is the bridge between pump-gas reliability and the bigger numbers E-blends make possible.