At Celtic Tuning, we bring our ECU remapping skills to the marine industry. We offer performance upgrades for Yamaha outboard engines. Our remaps are crafted in-house to ensure reliability and power. They provide smoother throttle response, stronger mid-range torque, and improved overall performance on the water.

For outboard users, these improvements mean faster acceleration, better fuel efficiency while cruising, and enhanced handling under load. Whether you use your boat for leisure, commercial work, or towing, our upgrades help you get the best out of your Yamaha engine.

We currently offer ECU remapping for various Yamaha outboards, including the F50, F60, and F70 models (2000 onwards). Each calibration is carefully engineered to ensure reliability while boosting performance, giving you full confidence every time you head out to sea.

All our marine tuning software is developed and tested in-house. Each remap comes with a mechanical breakdown warranty and our 14-day money-back guarantee.