The motor.
What we tune. Yamaha builds the engine. Nizpro recalibrates the brain. We install the calibration at your slip.
The 123 Slingshot calibration for the smaller 1.8L 4-cylinder Yamahas — F75 and F90. Both engines share the same 1.8L block and run the same Slingshot calibration target of 123 hp output. The bigger gains land on the F75 platform: stock 84 hp → tuned 123 hp, a +39 hp jump or roughly +47% over factory. F90 owners (104.6 hp stock) see roughly a +18 hp gain to the same 123 hp target. Either way, the result is a very different feeling engine — sharper throttle, stronger pull, more usable power across the band.
What we tune. Yamaha builds the engine. Nizpro recalibrates the brain. We install the calibration at your slip.
Real Nizpro Marine DynoLog test data for the 4 Cyl 1.8L Slingshot 123 (F75 / F90) platform. Stock factory output below, Nizpro Tuned output above. Power and torque across the full rev range — no marketing curves, no projections.
From 84 hp stock to 123 hp tuned, real measured dyno data.
From ~105 hp stock — roughly +18 hp gain at the same 123 hp target.
Stronger torque off the bottom for loaded skiffs and bay boats.
Tune stays inside the engine's design envelope. 89 MON minimum fuel.
| Engine Family | 4 Cyl 1.8L Slingshot 123 |
|---|---|
| Fits | Yamaha F75 (2017-Present) and F90 LB/XB (2016-Present) — 1.8L 4-cylinder. Both share Nizpro's 123 Slingshot calibration, targeting 123 hp output. |
| Tune Type | Nizpro Marine ECU Performance Repower |
| Output Target | → 123 hp |
| Install | Mobile — at your boat. Most jobs completed same day. |
| Service Area | Miami-Dade · Broward · Palm Beach |
| Reversible | Yes — flash can be reverted to OEM at any time. |
| Required Fuel | 89-octane US pump fuel minimum. |
ECU tuning is a modification, so it can affect Yamaha's warranty position depending on the engine and the specific issue. Nizpro's tunes stay inside the engine's design envelope and are reversible to the OEM calibration at any time, but we always recommend talking to your local Yamaha dealer about your individual situation. We'll give you straight answers — we don't make warranty promises we can't keep.
A minimum of 89-octane US pump fuel is required to run any Nizpro performance tune safely. Premium (91+) is fine and won't hurt anything. Regular 87-octane is not approved — running lower-octane fuel can cause knock and undo the gains the tune is designed to deliver.
Most ECU reflashes are completed the same day. The actual flash takes under an hour — most of the appointment is diagnostics, baseline data logging, and a road test afterward. Plan on a few hours start to finish. Larger installs or troubleshooting can take longer.
Yes. The Nizpro flash can be reverted to the original Yamaha OEM calibration at any time. If you sell the boat, change your mind, or need to take the engine to a Yamaha dealer for unrelated service, we can put it back to factory.
Real-world cruise economy gains typically run 5–20% depending on the engine, the prop setup, the hull, and how you operate. Some Yamaha platforms — like the VF SHO V6 — see published Nizpro test data of up to 27% at cruise. We won't promise a specific number on your boat until we know your setup, but the range is consistent and well-documented across hundreds of installs.
We're Yamaha specialists exclusively. Nizpro is a Yamaha-only performance shop, and that focus is part of why their calibrations are so well-developed. If you've got a Mercury, Suzuki, or Honda outboard, we're not the right shop — we'll tell you that honestly.
Tune pricing varies by engine family — a 4-cylinder F-series flash and a V8 5.6L Performance Repower are different products at different price points. Call (305) 482-1121 or send us your engine model and year and we'll give you a straight quote.
Tell us your engine model, year, and where the boat is. We'll confirm availability and schedule your mobile install.
Call (305) 482-1121Nizpro Marine performance tunes require a minimum of 89-octane US pump fuel and adherence to Yamaha's recommended service intervals. Performance gains vary by engine model, year, propeller setup, hull configuration, and operating conditions. ECU tuning is a modification — implications for any factory warranty depend on Yamaha and the specific issue.
Yamaha® is a registered trademark of Yamaha Motor Co., Ltd. Nizpro® and Nizpro Marine® are registered trademarks of Nizpro Marine Pty Ltd. Performance Tech Marine is an authorized Nizpro Marine dealer and is not affiliated with or endorsed by Yamaha Motor Co., Ltd. All product names, logos, and brands are property of their respective owners.