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MaxxECU RACE H2O Plug-in STANDARD (Ford Focus RS/ST Mk2) ECU

ProPlug-in
US$1,958
Dealer price (maxxecu.com store price in USD, excl. VAT); maker's store EUR 1,675.04Checked

The MaxxECU RACE H2O Plug-in STANDARD (Ford Focus RS/ST Mk2) is a professional plug-in engine control unit (ECU) from MaxxECU. It has 1 drive-by-wire throttle channel, 1 onboard wideband lambda input and knock control. List price is US$1,958. One seller lists it at US$1,876.

Prices checked . Specs from MaxxECU's published data.

Pixel illustration of the MaxxECU RACE H2O Plug-in STANDARD (Ford Focus RS/ST Mk2)
MaxxECU RACE H2O Plug-in STANDARD (Ford Focus RS/ST Mk2) product photo
Photo: MaxxECU · maxxecu.com ↗

Key specs

–INJECTORS
–IGNITION
–MAX CYL
1DBW
1λ WIDEBAND
2KNOCK
–CAN BUSES
✓LOGGING

DBW = drive-by-wire throttle channels · λ wideband = onboard wideband lambda (oxygen sensor) inputs · CAN = controller area network buses.

Features

  • ✓Drive-by-wire
  • ✓Onboard wideband
  • ✓Knock control
  • ✓Flex fuel
  • ✓Traction control
  • ✓Launch control
  • ✓Boost control
  • ✓Gearbox control
  • ✓Onboard logging
  • ?Ethernet
  • ✓USB
  • ✕Built-in display

✓ published · ✕ not offered · ? not published. Some features, like traction control and launch control, mean different things by brand. See the glossary.

Details

Highlights
Fits: Ford Focus RS Mk2 2009-2011 (JZDA), Ford Focus RS500 Mk2 2010-2011 (JZDA), Ford Focus ST/ST225 Mk2 2005-2012 (HYDA), manual only. Kit includes the RACE H2O ECU, ME9.0 adapter harness, MAP fitting, USB cable, Bluetooth antenna and a quick guide; it uses the stock LSU 4.2 wideband. Focus ST: manual transmission only. Fits the Ford Focus only, not Volvo cars with the same T5 engine. The air mass meter (MAF) is removed; the built-in 400 kPa MAP sensor replaces it. Dash lights, tacho and clutch/speed signals run over the OEM CAN bus. OEM EGT sensors and fuel consumption output are not supported; 6 Type-K EGT inputs are in the harness. The store title says 2009-2010 and the harness is labelled 'Focus RS 2010'; MaxxECU's wiring manual lists ST models from 2005.
Software
MTune (free)
Logging
8 MB onboard, up to 1000 Hz
Links
Product page ↗
Fits
Ford Focus RS / ST
Tuning
Find a MaxxECU tuner with a dyno
Maker
MaxxECU: history, software and every model

Where to buy the RACE H2O Plug-in STANDARD (Ford Focus RS/ST Mk2)

1 sellers found

LowestUS$1,876MaxxECU (official store) · Sweden
TypicalUS$1,876median of 1 priced
HighestUS$1,876
In stock0 of 1as listed
EUR 1,675≈ US$1,876

Prices as shown on each seller's site on , in their own currency, converted at 14 Oct 2026 rates. Shipping, import duty and tax vary. Check with the seller before you buy.

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