VF250 SHO 4.2L V6 NIZPRO 332HO KIT - 1 Engine

1,495 USD

Why purchase a Nizpro ECU Flash?

It's all about optimising performance.

The Nizpro ECU Flash is a cost effective, simple way of turning your engine into a 332hp monster: improving hole shot, mid-range acceleration and top speed. Or cruise at your normal speed with lower revs and less engine noise with improved overall fuel economy.

VF250 SHO 4.2L V6 NIZPRO 332HO KIT – 1 Engine

USD $1,495.00

An ECU Flash is about optimising the performance of your engine. It’s not about turning your boat into a rocket ship – that’s what we made Nizpro 450s Superchargers for!

Use the DIY Kit to easily flash your ECU! Upgrading to a Nizpro ECU Flash, your Yamaha 250hp SHO will make 332hp and rev to 6,400rpm and with extra torque through the rev range to get your boat up and out of the water faster.

Increased Power, Improved Economy & Reliability? It’s all true!

Testing: We have rigorously tested the Nizpro Marine 332HO ECU Flash on standard Yamaha 250hp SHO engines utilizing the Nizpro Marine Endurance Test on our inhouse dyno cell. The engine passed with no adverse effects*.

The engine has also been extensively water tested for 250+ hours to further validate the dyno results. These tests underpin the performance of the hundreds of engines currently in market using the Nizpro Marine 332HO ECU Flash & are undertaken to ensure complete confidence in the Nizpro Marine 332HO ECU Flash.

*Performance Caveat: Engine must run on Minimum 89–90 USA grade / 95-98 AUS grade Octane fuel & have adhered to recommended Yamaha service intervals. 

Additional Tunes available from $765USD

Please note that all NIZPRO ECU Flashing Software is ONLY compatible with Windows Computers.

• 32% Power increase up to 332 hp
• 5% Torque increase up to 327Ftlbs
• RPM limiter increased to 6400rpm
• Improved fuel economy


DIY Kit includes
• ECU Flash Interface & USB Cable
• SHO Flash Harness
• Power Cable
• 2 x 332HO Nizpro Decals
• Single 332HO Flash Tune
• Nizpro USB preloaded with Instructions

Suitable for Yamaha VF250 SHO LA         2008  to 2021.