V6 4.2L Yamaha SHO 200, 225, 250 Nizpro Tune (2008-Present)

$949.00

200

225

250

ECU ID

If your ECU ID is not in this list please locate the "Prog. ID" or "Ver. ID" on the ECU and re-check.

If it is still not in the list after that, please select "Contact Support".

Scroll to the "Find Your ECU ID" section for help finding your ECU ID.

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Peak SHO Performance

At Tampa Marine Tuning, we are excited to offer Nizpro's performance tune for 6 Cylinder Yamaha outboard SHO engines. With Nizpro's performance upgrade, your 200, 225, or 250 horsepower engine can increase to 332hp. Fuel Economy will vary by model and boat setup but on average customers see a 15% increase in MPG.

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.

ATTENTION (2021-2022 Engines): ECU ID numbers ending in "01" (6KY, 6LG, 6KX, 6KW, 6LF) are missing from the dropdown because Yamaha has recalled them for an ignition issue. ( https://yamahaoutboards.com/getmedia/22e3fbda-b6fc-46ec-9740-81e8d36d104c/O2022-002R.pdf )

** Multi-engine orders: Free overnight return shipping automatically applied at checkout **

Tuner’s Note:

If you’re looking to tune your 250 SHO, please know that Yamaha fudges the numbers to be competitive with the other manufacturers. For example the 250 actually produces 283 peak HP on the dyno, so the real gain with our tune is ~60hp. That being said you will still see an increase in speed, torque and fuel economy, but its not going to give you 20mph extra in top speed.

For the 200 & 225 SHO on your bass boat, you’re a psycho and we love it. You might consider adding seatbelts to your captain’s chair.

V6 SHO Performance Calculator – Tampa Marine Tuning

Boat Tuning
Performance Calculator

Enter your boat's current performance details. We'll use Crouch's Calculator to identify your hull factor, then predict your tuned top speed.

1.

Please select your engine.

2. lbs

Please enter your boat weight.

3. mph

Please enter your current top speed.

Estimated Performance Gains.
Learn more about these calculations here.

More Power. Less Fuel.

Fuel Savings & Range Calculator

Input your current operating parameters to see how a tune will benefit your costs and range. Disclaimer: Estimates are calculated using a 15% increase in MPG at cruising speed. Customers with multiple engines can experience far greater results.

Motor Type

Fuel Price

Cruising MPG

Cruising MPH

Motor Quantity

Fuel Tank Capacity

Operating Hours / Year

Calculate

Current Fuel Economy (MPG)

Current Cost per Operating Hour

Current Range (miles)

New Fuel Economy (MPG)

New Cost per Operating Hour

New Range (miles)

Find your ECU ID

Your engine's ECU can be found in one of several locations in the engine case depending on year, make, and model.

Typical V6 ECU Location: Aft, middle.

You will need your ECU ID to purchase a software upgrade. Follow the link to our ECU Removal Guide video for guidance.

ECU Removal Guide

Contact us

Have a question, or want a product recommendation? Get in touch.