Marine Tuning | Mercury | Mercruiser 4.3L | V6 | MPI | 190HP


Marine Tuning Mercury | +/- 15 % Performance and torque

Experience the full potential of enhanced power and dependability through our advanced Marine tuning services. Our experienced team guarantees a remarkable boating journey, surpassing all expectations with unmatched performance. Elevate your boating experience with our premium Marine tuning services. Optimize your boat’s performance with ECM tuning.

Performance tuning for these marine ECMS is crucial for optimal operation.

Marine Tuning Mercury Mercruiser 4.3L | V6 | MPI | 190HP.

ECM701 | High Power Boat.



Marine Tuning | Mercury Mercruiser 4.3L | V6 | MPI | 190HP

Marine Tuning for Mercury Marine 4.3L | V6 | MPI | 190HP. Unlock exceptional power and reliability with our advanced Marine tuning services. Our expert team will elevate your boating experience to new heights, ensuring an unparalleled performance that will exceed all your expectations.

Get ready to take your boat to the next level with our top-of-the-line Marine tuning services.

When it comes to marine engines, tuning is not just a luxury; it’s a necessity for achieving optimal performance. Your ECM701 has tremendous potential waiting to be unleashed, and tuning allows you to tap into that power.

Tuning also plays a vital role in increasing overall horsepower and torque output. With precise adjustments to your engine’s settings, you’ll experience improved acceleration, better throttle response, and increased top speed. Whether racing against fellow boaters or enjoying a leisurely cruise with friends and family, these enhancements will undoubtedly enhance your boating experience.

Manufacturer Part Number:  ECM701


A 1-year warranty.


All you need to do is ship your unit to us, and we will tune your ECM.

Why trust us

Our engineering team has over 15 years of experience, more than 10K repaired ECMs, and the latest simulation technology. We are always happy to assist you with any technical assistance we can. Feel free to contact us to discuss the faults you are experiencing before sending in your parts.

ECM Engineering USA / ECM Repair USA

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Additional information

Weight105 oz
Dimensions11 × 14 × 7 in