More Power on the Water.

On-board ECU calibration for boats and yachts

Maximise the performance of your boat, yacht or RIB with our specialist marine ECU remap. Using advanced tuning equipment and in-house developed software, we recalibrate your vessel's engine control unit to deliver stronger acceleration, improved throttle response and greater power output on the water.

What Is a Marine ECU Remap?

A marine ECU remap is a precision software upgrade that recalibrates the Engine Control Unit on your inboard, outboard or sterndrive engine. By optimising fuel delivery, ignition timing and boost parameters, we extract the performance your marine engine was designed to deliver, safely within factory mechanical tolerances.

Marine engines are tuned conservatively from factory for reliability across varied sea conditions, fuel grades and load scenarios. Our in-house engineers reverse these conservative limits using manufacturer documentation and on-water verification where applicable.

Supported Marine Engines

We remap a wide range of marine ECU platforms including:

  • Mercury — Verado, Optimax and FourStroke outboards
  • Yamaha — F-series outboards and marine inboards
  • Suzuki — DF-series outboard engines
  • Volvo Penta — petrol and diesel sterndrive/inboard engines
  • Indmar / Ilmor — tow-sports and performance inboard engines
  • Crusader / PCM — ski boat and performance inboard platforms

Browse boat-specific remaps in our boat shop, or contact us with your engine make, model and year for compatibility confirmation.

What You'll Notice After Your Remap

The difference is felt immediately on the water. Hole shot improves, mid-range torque strengthens and throttle response becomes sharper and more predictable.

  • Quicker acceleration from standstill
  • Stronger mid-range for towing and watersports
  • Improved throttle response at all RPM ranges
  • Smoother power delivery across the rev range
  • Enhanced performance for recreational and competitive use

Key Benefits

  • Stronger Acceleration
  • Improved Throttle Response
  • On-Board Marina Service
  • Sea Trial Verification
  • Custom Marine Maps
  • Original Map Backup
  • Inboard & Outboard Coverage
  • Lifetime Software Warranty

Frequently Asked Questions

Which boat engines can you remap?

We remap a wide range of marine ECUs including Mercury, Yamaha, Suzuki, Volvo Penta, Indmar, Ilmor and other inboard, outboard and sterndrive platforms. Contact us with your engine make, model and year for confirmation.

Do you work on-board at the marina?

Yes. Our mobile marine engineers carry professional equipment and perform on-board ECU tuning at marinas, moorings and boatyards across Poole Harbour, Bournemouth, Southampton and the Dorset coast.

What improvements will I notice?

Typical gains include stronger hole shot, improved mid-range torque, sharper throttle response and better top-end performance. Every map is custom-developed in-house for your specific engine.

Is marine remapping safe for salt-water use?

Yes. Our remaps operate within factory mechanical tolerances. We perform a full diagnostic check before any work and back up your original ECU map for full reversion if needed.

Marine & Boat ECU Remapping in Bournemouth, Dorset & Across the UK

24Tuning is Dorset's trusted mobile marine ECU remapping specialist. We deliver custom in-house calibration using Alientech, Autotuner and CMD equipment, with every remap backed by a full diagnostic health check and our lifetime software warranty.

We serve boat owners across Poole Harbour, Bournemouth, Southampton, Weymouth and the wider Dorset coast. Our mobile engineers bring dealer-level equipment directly to your marina or mooring, eliminating the need to haul out or visit a workshop.

Browse remaps in our boat shop, or contact our team for personalised advice. Ready to book? Secure your appointment with a £50 deposit.

Ready for More Power on the Water?

Get a free quote or book your on-board marine remap today.

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