Yamaha ECU Flash XF425 XTO, XF450 XTO

Ship your ECU to us at 3232 26th Ave E UNIT D, Bradenton, FL 34208 for our professional tune, and we'll return it via mail. 

Outboard EFI ECU tune for Yamaha XF425 XTO, XF450 XTO

Once tuned the HP for the ALL YEARS XF425 XTO ECO will be 450HP

Once tuned the HP for the ALL YEARS XF425 XTO HIGH PERFORMANCE will be 485HP

Once tuned the HP for the ALL YEARS XF450 XTO HIGH PERFORMANCE will be 485HP

Please note: Installing a tune will not correct pre-existing engine faults.

The fuel and ignition curve is optimized for 89 octane (95 EU for outside North America) or better fuel. This allows your tune to easily get to the max HP and slightly beyond. 

We recommend ensuring your shipment to protect your unit during transit. Our technicians will reprogram your engine control unit and send it back ready to install.