Your performance
Stage 1
Power
77hp
Stock 57 hp +20 hpgain
Figures depend on your vehicle’s hardware, condition and fuel.
Eagle Tuning · Custom performance
Yanmar 4J Series
4JH57
All Diesel 57hp
In development · Contact us for availability.
Make it yours.
Choose your tuning.
The Eagle approach
Your car.
Your calibration.
Custom software, developed around your vehicle and its setup. We review vehicle logs and refine the calibration for power, response and everyday drivability.
Talk through your setupOur tuning guarantee.
Custom tuning in the United States includes a 2-week money-back guarantee: if you are not satisfied within 14 days, we offer a full refund.
Our custom tuning includes a 5-year software warranty.
Contact [email protected] about your tuning, refund or software warranty.
A few things to know.
Which stage is right for my car?
Choose a stage above to see its figures and requirements. For Stage 2 and higher, contact us with your VIN, mileage and current modifications so we can confirm the hardware your setup needs.
How does custom tuning work?
We review your vehicle’s setup, collect logs and adjust the calibration. The final result depends on the vehicle’s condition, hardware and fuel.
How do I book?
Use “Request appointment” to carry this vehicle into the appointment form. We’ll confirm your tuning requirements and timing with you.