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At Tampa Marine Tuning, we are excited to offer Outboard EFI's performance tune for 6 Cylinder Suzuki outboard engines. With this performance upgrade, your 250 and 300 horsepower engine will increase 25-75 horsepower depending on the model.
- DF250SS +25hp
- DF250SS (digital) +75hp
- DF250AP +75hp
- DF300 +25hp
- DF300AP +25hp
NOTE: To achieve optimal performance, your engine must run on minimum 89-90 USA grade / 95-98 AUS grade octane fuel and adhere to recommended service intervals. Failure to do so may result in decreased performance and could potentially damage your engine.
** Multi-engine orders: Free overnight return shipping automatically applied at checkout **
Outboard EFI™ Authorized Dealer
Unlock factory-hidden performance from your Suzuki with ECU tunes by Outboard EFI—specialists in safe, calibrated power. Their flash optimizes fuel and ignition for 89+ octane, eases electronic airflow limits, and taps into the shared hardware many models already have, so you feel stronger mid-range punch, better throttle response, and improved efficiency without a full repower.