Términos del servicio
Last Updated: August 28, 2026
These Terms of Service (“Terms”) apply to all tuning, calibration, remote tuning, e-tuning, dyno tuning, consultation, and related services provided by Yosh Tuned (“Yosh Tuned,” “we,” “us,” or “our”).
By purchasing or participating in a Yosh Tuned service, the customer acknowledges and agrees to the following terms.
1. Assumption of Risk
The customer understands that vehicle modification, performance tuning, calibration, testing, datalogging, dyno operation, and wide-open-throttle testing may place the engine, transmission, drivetrain, fuel system, turbocharger or supercharger system, and other vehicle components under loads greater than those experienced during normal factory operation.
Performance modifications and tuning involve inherent mechanical risk.
The customer voluntarily assumes the risks associated with modifying, testing, tuning, and operating the vehicle.
Yosh Tuned cannot guarantee that a vehicle or component will not experience mechanical failure during or after the tuning process.
2. Vehicle Condition and Customer Responsibility
The customer is responsible for ensuring that the vehicle is mechanically sound, properly maintained, and correctly assembled before tuning begins.
This includes, where applicable, the condition and installation of:
- Engine and drivetrain components
- Fuel system
- Ignition system
- Turbocharger or supercharger system
- Sensors and wiring
- Wideband oxygen sensor
- Cooling system
- Tires and drivetrain components
- Engine fluids and maintenance items
- ECU, tuning hardware, and supporting modifications
If Yosh Tuned determines that a vehicle has a mechanical, electrical, fueling, sensor, installation, or safety issue, tuning may be paused or discontinued until the issue is corrected.
Mechanical repairs and troubleshooting outside the purchased tuning service are the responsibility of the customer unless otherwise agreed in writing.
3. Mechanical Failure and Liability
Yosh Tuned is not responsible for mechanical failures or damage resulting from pre-existing conditions, defective or worn components, improper installation, inadequate maintenance, incorrect vehicle information, unauthorized calibration changes, misuse, over-revving, overheating, insufficient fuel supply, fuel-quality issues, or operation outside the instructions provided by Yosh Tuned.
The customer acknowledges that a component may fail during tuning even when the calibration itself is functioning as intended.
To the maximum extent permitted by applicable law, Yosh Tuned's liability arising from a tuning service will not exceed the amount paid for that specific service.
Nothing in these Terms is intended to exclude liability that cannot legally be excluded or limited.
4. Vehicle Testing and Operation
For in-person or dyno tuning, the customer authorizes Yosh Tuned personnel or authorized representatives to operate, test, inspect, datalog, and perform calibration-related testing on the vehicle as reasonably necessary to provide the purchased service.
The customer acknowledges that testing may include operation under high engine load, elevated RPM, and wide-open throttle.
5. Remote and E-Tuning
For remote or e-mail-based tuning, the customer is responsible for safely performing all requested datalogging and testing.
The customer must obey all traffic laws and should perform testing only in a legal and appropriate environment.
Yosh Tuned does not instruct customers to violate traffic laws or operate a vehicle in an unsafe manner.
Remote tuning services are otherwise subject to the same terms and conditions as in-person tuning services.
6. Accuracy of Vehicle Information
The customer is responsible for providing complete and accurate information regarding the vehicle and its modifications.
This includes items such as engine configuration, injectors, fuel type, MAP sensor, turbocharger or supercharger, wastegate configuration, intake system, exhaust system, ECU hardware, and any other information requested by Yosh Tuned.
Yosh Tuned is not responsible for issues resulting from inaccurate, incomplete, or undisclosed vehicle information.
7. Calibration Ownership and Intellectual Property
The customer is purchasing a tuning service and license to use the resulting calibration on the vehicle for which the service was purchased.
Unless otherwise agreed in writing, the underlying calibration strategy, tables, maps, tuning methodology, proprietary data, and related intellectual property remain the property of Yosh Tuned and/or the tuner who created the calibration.
The calibration may not be resold, redistributed, commercially reproduced, reverse engineered for redistribution, or represented as the work of another tuner without written authorization.
Yosh Tuned may use password protection, ECU locking, anti-tampering functionality, or other measures supported by the applicable tuning platform to protect proprietary calibration information.
Where supported by the tuning platform, Yosh Tuned may provide the customer with a usable calibration file at its discretion and subject to these Terms.
8. Unauthorized Changes
The customer should not modify the calibration or allow another person or business to modify the calibration without notifying Yosh Tuned.
Yosh Tuned is not responsible for the operation or safety of a calibration after it has been modified by another party.
Additional tuning required because of unauthorized calibration changes may require purchase of a new tuning or re-tuning service.
9. Service Termination
Yosh Tuned reserves the right, where permitted by law, to pause, refuse, or discontinue tuning services when:
the vehicle is unsafe or mechanically unfit for tuning; required information or datalogs are not provided; the customer repeatedly operates the vehicle contrary to tuner instructions; unauthorized calibration changes interfere with the tuning process; or abusive, fraudulent, threatening, or otherwise inappropriate conduct prevents the service from being reasonably completed.
Termination of service resulting from vehicle condition, customer noncompliance, or circumstances outside Yosh Tuned's control does not automatically entitle the customer to a refund.
10. Service Period
Tuning services must be initiated within 30 days of the original purchase date, unless Yosh Tuned approves an extension.
Failure to begin the tuning process within that period may result in expiration of the service and require the purchase of a new tuning service.
Once tuning has begun, customers are expected to provide requested datalogs and information within a reasonable period so that the calibration can be completed.
11. Revisions and Turnaround Time
Tune revisions and tuning-related support are normally performed Monday through Friday on business days.
Yosh Tuned makes reasonable efforts to provide revisions promptly; however, one revision per business day is not guaranteed.
Turnaround time may vary due to workload, vehicle condition, datalog quality, troubleshooting requirements, holidays, customer response time, or other circumstances.
12. Refunds
Tuning and calibration services are customized digital services.
All sales are final once tuning work has begun, except where otherwise required by law or approved by Yosh Tuned.
Customers should review the separate Refund Policy for additional information regarding cancellations, expired services, and refund eligibility.
13. Modification of Vehicle After Tuning
A calibration is created for the vehicle configuration disclosed during the tuning process.
Changes to the vehicle after tuning—such as different injectors, fuel type, MAP sensor, turbocharger, supercharger pulley, intake manifold, camshaft, engine configuration, or other significant modifications—may require recalibration.
Additional tuning resulting from later modifications may be subject to a Re-Tune Service charge.
14. No Performance Guarantee
Horsepower, torque, boost pressure, acceleration times, fuel economy, and other performance results vary based on vehicle condition, modifications, fuel quality, weather, altitude, dyno type, traction, drivetrain loss, and other factors.
Yosh Tuned does not guarantee a specific horsepower, torque, boost, or performance result unless expressly agreed in writing.
15. Governing Terms
These Terms, together with the Yosh Tuned Refund Policy and Privacy Policy, govern the customer's purchase and use of Yosh Tuned services.
If any provision of these Terms is determined to be unenforceable, the remaining provisions will remain in effect to the extent permitted by law.
16. Contact
Questions regarding these Terms may be directed to:
YOSH TUNED
Email: tuning@yoshtuned.com
Website: yoshtuned.com