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Unleash Your Boat's True Potential

Enhance your Mercury outboard engine with our expert ECU remapping services tailored for power, efficiency, and reliability. Upgrade today and experience the difference on the water!
Contact US NOW

Our Expert Services

Specialized tuning solutions for all Mercury outboard models.

ECU Remapping

Tailored tuning for optimized power and performance.

Fuel Efficiency Optimization

Improved fuel consumption without sacrificing speed.

Performance Enhancement

Safe upgrades ensuring reliability and durability.

Maximize Your Mercury Outboard’s Performance – Power Gains & Tuning Examples

Tuning for Mercury Outboard 4-Stroke - Examples

Mercury L4 2.1L

  • Models: 80-115 HP

  • Original: 75-115 HP

  • Optimized: 120 / 160 HP

  • Price from: 649 USD

Mercury L4 1.7L

  • Models: 135, 175, 200 HP

  • Original: 135-175-200 HP

  • Optimized: 200 (240) HP

  • Price from: 899 USD

Mercury L6 2.6L

  • Models: 200, 225, 250, 275, 300 HP

  • Original: 200-225-250-275-300 HP

  • Optimized: 300 / 330 / 375 HP

  • Price from: 1199 EUR

Mercury V8 4.6L 450R

  • Original: 450 HP

  • Optimized: 500 HP

  • Price: 1299 USD

Mercury L6 2.6L 400R

  • Original: 400 HP

  • Optimized: 450 HP

  • Price from: 1299 USD

Mercury 350 SCI GEN 2 L6 2.6L

  • Original: 350 HP

  • Optimized: 450 / 475 HP

  • Price from: 1310 USD

Mercury V6 3.4L

  • Models: 175, 200, 225 HP

  • Original: 175 HP

  • Optimized: 225 / 240 HP

  • Price from: 1299 USD

Mercury Pro XS V8 4.6L

  • Models: 200, 225, 250, 300 HP

  • Original: 200 HP

  • Optimized: 300 / 330 HP

  • Price from: 1499 USD

Mercury Pro XS V8 4.6L

  • Models: 200, 225, 250, 300 HP

  • 200/225 models will need updated 80 mm throttle body to gain more then 270 hp! Contac us for more info!

  • Original: 200 HP

  • Optimized: 300 - 87 oct / 330 91 oct  /340 -93 oct  HP

  • Price from: 1499 USD

USB Interface for Marine Tuning
OBD Mode: $250
OBD + Bench Mode: $300

Unlocking Mercury's Power on Water

At gobjt.com, we're dedicated to unleashing the full potential of your Mercury outboard engine. With our expertise in tuning, we optimize your boat's performance, offering enhanced power, fuel efficiency, and throttle response. Our professional ECU remapping is tailored to your needs, ensuring safe and reliable enhancements without compromising durability. From small engines to high-performance V8s, we have years of experience in maximizing marine engine capabilities. Upgrade your outboard with us today and feel the remarkable difference on the water.

Why Choose Us?

Discover unparalleled tuning solutions for your Mercury outboard.

Proven Performance Gains

Our tuning delivers measurable improvements you can trust.

Optimized Fuel Efficiency

Maximize your mileage with tailor-made tuning solutions.

Safe and Reliable Tuning

Enhancements are designed to keep your engine running smoothly.

Expertise in Mercury Outboards

Decades of experience specializing in Mercury engine performance.

Client Testimonials

Read what our clients have to say about their experience with our Mercury outboard tuning services.
Oscar Svenssen
I was amazed by the increased power and fuel efficiency after tuning my Mercury outboard with Gobjt. Highly recommend!
James Summer
The ECU remapping by Gobjt really improved the throttle response of my boat. Great service and results!
Keith Larssen
Gobjt's expertise in optimizing Mercury outboards is unmatched. My engine performs better than ever before.

Get in Touch

Reach out for expert tuning solutions or inquiries about your Mercury outboard.

+12059749333

info@bjtmarin.se

Sun: Closed, Mon-Fri: 8 am-6 pm, Sat: 10 am-4 pm

Want Us to Reach Out?
Simply enter your contact details and engine information, and we’ll get in touch with you via phone or email!
Name E-mail Phone Number Engine size cylinder + cc Engine Stock Hp Engine Year Message Submit

Let us improve your Mercury!

Frequently Asked Questions

Get clear answers to common questions about our Mercury outboard tuning services.

What is ECU remapping?

ECU remapping involves modifying your outboard's engine control unit settings to enhance performance, fuel efficiency, and throttle response.

Will tuning affect my engine's reliability?

No, our tuning solutions are designed for safe, reliable performance enhancements without compromising your engine's durability.

Which Mercury models do you service?

We provide tuning solutions for a wide range of Mercury models, from smaller engines to high-performance V8s.

How much power can I expect to gain?

Performance gains vary, but our expertise typically leads to noticeable increases in power and efficiency tailored to your engine.

Can I tune my outboard myself?

IF you buy our OBD interface then yes

How do I contact you for a consultation?

You can reach us at +12059749333 or email us at info@bjtmarin.se for any inquiries regarding our tuning services.

1. Independent Entity

gobjt.com and its parent company are independent businesses and are not affiliated with, endorsed by, or sponsored by Mercury Marine, Yamaha Motor Corporation, BRP (Sea-Doo), Suzuki, or any other original equipment manufacturer (OEM) mentioned on this site.
All product names, trademarks, and brands are the property of their respective owners and are used only for the purpose of identifying compatibility.

2. Legal Use of Products

Our tuning tools, software, and services are intended exclusively for lawful use on equipment legally owned by the end user. These tools are designed for:

  • Diagnostic access,

  • Maintenance and repair,

  • Performance optimization.

Use of any products or services offered via gobjt.com is at the sole risk and responsibility of the user. It is your responsibility to ensure that any tuning or modification:

  • Complies with local, federal, and international laws,

  • Does not disable or alter emissions control or safety systems,

  • Does not violate copyright, environmental, or competition law in your jurisdiction.

3. DMCA Compliance (USA)

In the United States, the Digital Millennium Copyright Act (DMCA) exemption of 2021 explicitly permits circumvention of ECU protections in marine vessels for the purpose of diagnosis, repair, or lawful modification by owners or third parties acting on their behalf.

We provide tools that enable such access, but we do not distribute OEM firmware, nor do we authorize the disabling of emissions or safety systems.

4. No Liability

gobjt.com, its owners, affiliates, and partners accept no liability for:

  • Improper use of its tools or services,

  • Legal or regulatory actions resulting from misuse by resellers or end users,

  • Claims relating to intellectual property infringement, product misuse, or misrepresentation.

You agree to indemnify and hold harmless gobjt.com and its affiliates from any and all claims or damages arising from your use of this website or its products.

5. Jurisdiction

This website is operated under the laws of  the European Union. Use of our products outside of the EU is subject to your local jurisdiction’s laws and enforcement practices.

Upgrade Your Outboard Today

Unlock the full potential of your Mercury outboard with our professional ECU remapping services. Experience proven performance gains, optimized fuel efficiency, and safe tuning for your marine engine. Contact us now to take your boating experience to the next level.
Contact US