Yanmar BY Series 4BY150
Change vehicle
146 hp
330 Nm

TuningBox Marine


Diesel Chip Tuning for Yanmar BY Series 4BY150 146 hp – Tuning Box - photo 11

+34 hp    +60 Nm

Diesel Chip Tuning for Yanmar BY Series 4BY150 146 hp – Tuning Box - photo 13 -15% fuel consumption

Diesel Chip Tuning for Yanmar BY Series 4BY150 146 hp – Tuning Box - photo 14 2-year product guarantee

Diesel Chip Tuning for Yanmar BY Series 4BY150 146 hp – Tuning Box - photo 15 Plug and Drive

Tuning Box Marine

We’ve developed a specific chiptuning unit to boost engine performance of boats.

These performance chips are designed specifically the nautical sector and with your needs in mind: significantly better performance (20-25% torque and power boost) and up to 15% less fuel consumption.


  • Latest software version, specifically for your vehicle
  • Injector optimisation for more precision
  • Engine Protect +
  • Adaptive Smart Sensor
  • High-precision 64-bit microprocessor
  • High-end AMP connectors
  • 100% watertight, suited to all climates
  • Resistant to dust, impacts and vibrations
  • Unit can be reprogrammed if you change your vehicle


  • Warranties & guarantees
  • 2-year product guarantee
  • Satisfied or your money back
  • Technical support
  • “Made in Belgium” quality

High performance powerchip.

Our Tuning Box Classic YA-BY-150 chiptuning unit will upgrade the performances of your Yanmar BY Series. You will have more power (+34 hp) and more torque (+60 Nm) with this diesel chip. The power of your diesel 4BY150 146 hp engine is increased by up to 180 hp* and its torque is boosted by up to 390 Nm*. Moreover, tuning the ECU with an electronic chip will cut your consumption off by -1L./100km*. 

This performance chip especially developed for this diesel 4BY150 146 HP engine works as a custom ECU remap. Thanks to the supplied AMP plugs, this tuning box can be easily connected and scrupulously respects the power reserves and engine protection systems of the nationality_ manufacturer.

Tuning Box offers a 1-year engine warranty with this power box.

Made in Belgium Factory Shop
engine warranty
product guarantee
or your money back

I am very satisfied with the order process, customer support and i will recommend yo others. Many thanks

Instructions for DIY installation should be more detailled and specific for every single car model. Simple things as intake air filter position makes wiring more difficult in my fabia than in volks.

all very well

Great Service, keep as it is and no improvements needed

am very pleased with the whole process. You have to watch the transport package, the parcel has got into my hands in poor condition TUNE PEDAL outside the box and the bag torn.

Good communication and double check regarding the motor type of my BMW by TuningBox. Fast delivery of the box. Everything is working fine without any warninglight. Power increase is very noticeable.

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