Outboard ECU Flashing Service Agreement

Before We Begin

We're committed to making your ECU tuning experience simple, transparent, and professional.

This page explains how our ECU flashing service works, what's included, pricing, scheduling requirements, and what to expect before your appointment. Please review the information below before signing your ECU Flashing Service Agreement.

Mobile ECU flashing at your boat (when eligible)

ECU removal and reinstallation

Local shop ECU flashing

Mail-in ECU flashing service

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ECU Flashing Terms & Conditions

Next Level Marine, LLC | Last Updated: June 2026

1. Agreement Overview

This agreement applies to all ECU flashing, performance tuning, ECU programming, ECU removal and reinstallation, and related services performed by Next Level Marine LLC for eligible Yamaha, Suzuki, Honda, and Tohatsu outboards.

Whether your ECU is programmed at your boat, at our facility, or by mail-in service, these policies help ensure a smooth experience from start to finish.

2. What's Included

Every ECU tuning service includes professional programming using authorized Outboard EFI calibrations.

Depending on your engine and appointment, services may include:

ECU Compatibility Verification
ECU Removal (when applicable)
Professional ECU Programming
Authorized Outboard EFI Calibration
ECU Reinstallation
System Function Verification
Mobile Service (when eligible)
In-Shop Programming by Appointment
Mail-In ECU Programming

One ECU tuning license is required for each engine.

3. Before You Schedule

Before scheduling your appointment, we'll verify your engine's compatibility.

Please have the following information available:

Engine Make
Engine Model
Horsepower
Model Year
ECU Information (if requested)

If you're unsure whether your engine is supported, contact us before purchasing.

Please Note: Mercury outboard ECUs are not currently supported.

4. ECU Tuning Pricing

Your total ECU tuning cost may include:

ECU Tuning License (varies by engine)
Initial Service Visit (new customers only)
Labor after the first included hour
Additional parts or materials (if required)

The Initial Service Visit includes:

One hour of labor
One mobile service call
Initial inspection (when applicable)
ECU removal and reinstallation (when applicable)
Professional ECU programming
System verification

Appointments are confirmed after your signed agreement and required payment have been received.

5. Performance Expectations

Professional ECU tuning may improve:

Horsepower
Throttle Response
Acceleration
RPM Limits
Overall Engine Performance

Actual performance improvements vary depending on:

Engine condition
Maintenance history
Propeller selection
Fuel quality
Boat weight
Operating conditions

Because every boat and engine combination is different, specific horsepower, speed, or fuel economy gains cannot be guaranteed.

6. Engine Requirements

Your engine should be mechanically sound before ECU tuning.

ECU flashing does not repair mechanical problems.

We recommend resolving issues such as:

Low Compression
Overheating
Ignition Problems
Fuel System Issues
Internal Engine Damage
Active Diagnostic Faults

before tuning is performed.

7. Fuel & Maintenance

Customers are responsible for:

Following manufacturer maintenance schedules
Using the recommended fuel and oil
Operating the vessel safely
Following all applicable boating and emissions regulations

Some ECU calibrations require premium fuel. Fuel recommendations will be provided for your specific engine.

8. Warranty Information

ECU tuning modifies the factory calibration inside your engine's Electronic Control Unit.

Because manufacturer warranty policies vary, ECU tuning may affect your factory warranty.

If you have questions about warranty implications, we're happy to discuss them before your appointment.

9. Mobile & Mail-In Service

We offer multiple programming options depending on your engine.

Mobile Service & In-Shop Programming

Available for many supported engines throughout our service area. Available by appointment only.

Mail-In Programming

Some ECUs must be shipped for programming.

Customers are responsible for:

Shipping costs
Proper packaging
Insurance (recommended)
Tracking information

Next Level Marine is not responsible for loss or damage during shipping. Any ECU listing you see online by Next Level Marine is for informational purposes only.

Next Level Marine will not accept payments for ECU through our website. To tune your ECU you must contact us, sign the agreement, and then we send you a separate invoice via QuickBooks to purchase your ECU tune.

10. Mobile Service Conditions

Our technicians perform ECU services at marinas, docks, residences, storage facilities, and other accessible locations.

Scheduling may be affected by:

Weather
Tides
Boat accessibility
Marina restrictions
Environmental conditions

11. Refund & Cancellation Policy

ECU tuning licenses may be eligible for a refund within 30 days of the original purchase date, including tunes that have been returned to factory calibration.

Refunds apply only to the ECU tuning license.

The following are non-refundable:

Labor
Initial Service Visit
Shipping costs
Additional service charges

Appointments may be rescheduled or canceled if required paperwork or payment is not received within 24 hours.

12. Communication Authorization

By scheduling ECU services, you authorize Next Level Marine LLC to contact you by phone, text message, or email regarding:

Scheduling
Service Updates
Invoices
Payments
ECU Programming Information

Your personal information is never sold or shared with third parties.

Thank you for choosing Next Level Marine, LLC – taking your vessel’s performance and care to the next level.

Why We Require a Service Agreement

Our Service Agreement protects both our customers and our technicians by clearly outlining pricing, scheduling, payment policies, and service expectations before work begins.

We believe clear communication helps every project run smoothly and eliminates surprises along the way.

Ready to Schedule?

Complete your Service Agreement and Initial Service Visit Payment to reserve your appointment.

Sign My Service Agreement

Need Help Choosing the Right Tune?

Not sure if your engine is compatible?

We'll verify your engine and recommend the correct ECU calibration before any programming is performed.

Verify ECU Compatibility

Frequently Asked Questions

Yes, technically the manufacturers have the right to decline warranty coverage if an engine makes more power than it was sold making. We do not condone any warranty manipulation. We suggest being upfront with OEMs.

Performance tuning may affect manufacturer warranty coverage. We recommend discussing warranty considerations before tuning your engine.

Most Yamaha tunes are designed for 89 octane recreational fuel or higher. We recommend ethanol-free fuel whenever possible.

Yes. Compatible ECUs can be returned to their original factory calibration if desired.

Yes. Factory diagnostic functions remain operational after tuning.

Many owners report similar or improved cruising fuel efficiency while enjoying increased performance when accelerating.

We recommend installing the tune then seeing what your RPM is. Each flash has a target RPM. For best results you will want to be at you target when loaded and fueled to your normal weight.

Yes all diagnostic routines will function normal with Outboard EFI tune.

If your engine is not on the list we still may do it, please send a message to nextlevelboatrepair@gmail.com. Include your year, make, model and a picture of your ECU.

The fuel and ignition curve is optimized for 89 octane or better fuel, Torque limiters are raised to a safe level. Electronic throttle bodies are controlled to allow 100% air flow when present.

Often manufacturers will use the exact same engine for multiple horsepower models and simply detune them for the lower HP models. This allows Outboard EFI to easily get to the max HP and slightly beyond.

No, during testing we find what the maximum horsepower achievable is and then reduce to a safe level for prolonged operation.

You bet! If you do not gain the horsepower we advertise we can restore the ECU to stock and refund your ECU license cost minus actual shipping cost.

Must be done with in 30 days of purchase.

We have extremely fast one day turnaround. This means that your ECU will be shipped back out within one business day of receiving it.

Normal return shipping is standard ground. Expedited shipping is available, please send us an email and we can add it for an additional charge.

No, all service recordings remain in tact on Outboard EFI tuned ECU's

The best performance will be on 90+ octane but will still be safe on 89 rec fuel. If possible run Non Ethanol fuel since it is less corrosive to fuel system components.

ECU Tuning Services for Tohatsu Outboards

If you have any questions before signing, we're happy to help.

Call or Text: (941) 565-0540

Next Level Marine LLC
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Mobile Outboard Repair, Marine Electrical Services & Much More

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