V8 5.6L XTO F425

Ship your ECU to us at 2840 County Road 523 Ste 4, Wildwood, FL 34785 for our professional flashing, and we'll return it via mail. (SAME DAY RETURN SHIPPING. FREE YAMAHA HAT & FISHING SHIRT INCLUDED).

Suitable for the following engines. This motor and boat must be present for tune.

Yamaha OFFSHORE XTO Series F425 5.6L V8 2018 to current.

Ship your ECU to us for professional flashing, and we'll return it via mail. We recommend ensuring your shipment for up to $3,000 to protect your unit during transit. Our technicians will reprogram your engine control unit and send it back ready to install. 

Upgrade Your Yamaha V8 5.6L 425 with the NIZPRO Marine Performance Repower – Enhanced tune will upgrade your motor to a 482 - ECO will upgrade your motor to a 436 

Choose between the 436 ECO upgrade for reliable, proven performance, or the NIZPRO 482 HO for maximum power and efficiency gains. Both solutions deliver the sophisticated engineering your vessel demands, with seamless integration and professional-grade results. Select the upgrade path that matches your operational requirements and performance goals.

Enjoy enhanced safety with improved fuel reserves, reduced operating costs, and the confidence of cutting-edge engineering. Available exclusively through DIY installation kits or professional ECU flashing, this upgrade transforms your vessel's capabilities without compromise.