OUTBOARD ECU REMAPPING & TUNING

Supported Brands

More Horsepower & Torque

Unlock the true potential of your engine block by removing factory software restrictions.

Crisper Throttle Response

Eliminate sluggish factory throttle mapping for immediate power delivery when you need it.

Safe & Reliable

All tunes are dyno-developed and verified within safe operating parameters.

Mail-In Convenience

Simply post your ECU to us from anywhere in Australia. 1-day turnaround in-house.

Enquire & Quote

Tell us your outboard details. We confirm support and provide a fixed quote.

Ship Your ECU

Remove and post your ECU to us via express post with tracking.

Remap & Verify

We load your dyno-developed tune and verify it on the bench.

Express Return

Your tuned ECU ships back to you, ready to plug in and perform.

To understand the massive value of an outboard ECU remap, you first need to understand how modern marine engines are manufactured. Developing a completely new engine block costs marine manufacturers tens of millions of dollars in R&D, tooling, and testing. To recoup these costs and offer a tiered product lineup, manufacturers build one highly capable engine block and use the Engine Control Unit (ECU) software to restrict its power output for lower-tier models. For example, a 75hp, 90hp, and 115hp outboard from the same manufacturer often share the exact same displacement, block, injectors, and internals. The only difference is the software mapping.

This means if you own the 75hp or 90hp version of that block, your engine is artificially choked by the factory. The throttle valve may only open to 70% even when your binnacle is pushed flat to the dash, and the fuel and ignition maps are deliberately softened. Our outboard ECU tuning service removes these artificial software limiters. We don't 'stress' your engine to make more power; we simply allow it to breathe and perform exactly as the manufacturer's engineers originally designed it to before the marketing department stepped in.

Unlocking this hidden horsepower requires precision, not guesswork. At Performance Outboards Australia, our remapping process involves a comprehensive recalibration of the core parameters that dictate engine performance. We start with the fuel maps. Factory tunes are often incredibly rich at wide-open throttle (WOT) to act as a blanket safety margin for poor fuel quality worldwide. By optimising the air-fuel ratio (AFR) for high-quality Australian fuels (95 or 98 RON), we instantly release trapped horsepower and allow the engine to run more efficiently.

Next, we optimise the ignition timing. Advancing the timing within safe, knock-free limits ensures the fuel burns at the exact right moment to push the piston down with maximum force. Finally, we recalibrate the electronic throttle control (drive-by-wire) and adjust factory torque limiters. The result is a dramatic transformation in how your boat performs. You'll experience a massive increase in mid-range punch for carrying heavy loads, a sharper holeshot to get on the plane faster, and increased top-end speed.

For commercial operators—charter boats, commercial fishermen, and water taxis—an outboard ECU remap is a business investment with a rapid return on investment (ROI). Time is money, and the ability to carry heavier payloads while getting on the plane quicker and cruising at a higher speed directly impacts your bottom line. Furthermore, because the engine isn't working as hard to maintain a cruising speed, many commercial operators report a significant drop in overall fuel consumption, paying off the cost of the tune in a matter of months.

For the recreational boater, the value is measured in experience and safety. A boat that struggles to get on the plane in a following sea or when crossing a dangerous bar is a massive safety hazard. The instant torque provided by our mail-in ECU tuning ensures you have the power you need, exactly when you need it. Whether you're trying to beat the weather back to the ramp or just want to pull a wakeboarder out of the water with ease, a properly tuned outboard completely changes the capability of your hull.

We've built our entire business model around making world-class dyno tuning accessible to every boat owner in Australia, regardless of their location. You don't need to tow your boat hundreds of kilometres to a workshop. Our mail-in ECU tuning service is streamlined, secure, and incredibly fast. Once you receive your fixed AUD quote, we provide simple, step-by-step instructions on how to remove the ECU from your specific Yamaha, Suzuki, Mercury, Honda, or Tohatsu outboard. It typically takes less than 10 minutes with basic hand tools.

You pack the ECU securely and send it to us via express post with tracking. The moment it arrives at our facility, it enters our strict workflow. We perform a full diagnostic health check, back up your original factory file, and apply your specific dyno-developed performance calibration. We bench-verify the ECU to ensure all communications and checksums are perfect, and then we ship it straight back to you via express post—usually within 1 business day of receiving it. You simply plug it back in, turn the key, and immediately feel the difference on the water.

How does a remap gain horsepower?

Does tuning shorten engine life?

What about factory warranty?

Is it safe to post my ECU?

Do I need to run premium fuel after a tune?