Monte GTR.
Advanced tuning with speed dyno
and diagnostics on an intuitive touchscreen
10-25% more power
and torque
5-10% more
fuel savings
Explore Monte GTR features in action
--------
power
+---hp*
Stock: ---hp*
Tuned: ---hp*
power
+---nm*
Stock: ---nm*
Tuned: ---nm*
*Real world gains may be less or more depending on a large number of contributing factors such as displacement, aspiration and selected tuning mode.
Discover Monte GTR ECU tuning features
Monitor performance, run tests, and customize live gauges directly from your dashboard
Peace of mind about your car's health
Monte car tuner helps you diagnose your car and understand error codes
Achieve up to 10% more fuel saving by using ECO 2 mode
Find out how much money you can save
1 month
1 month
2 years
$39
Your savings
Plug and play installation in less than 5 minutes
No special automotive knowledge needed. Connects via the OBDII port in the car's cabin
Reversible
No permanent ECU changes
HOW TO INSTALL
1:15
No special automotive knowledge needed. Connects via the OBDII port in the car's cabin
All your car’s parameters are right in front of you
Boost your car with Monte GTR
Monte GTR
$399.00
Performance tuning
Fuel economy tuning
Touchscreen controlled
Vehicle diagnostics
Acceleration meter
Virtual dyno
Monte GTR smart tuning box
OBD2 cable
Quick start guide
Magnet mount with suction cup
USB cable for data transferring
Aluminum GTR car badge
Other products
Tech specs
Performance figures
10-25%* more horsepower
10-25%* more torque
5-10%* better fuel saving
Warranty and return
30 days money back and
lifetime warranty on defects
software
Monte GTR firmware core PC
programmer with vehicle specific
tuning database
hardware
16 pin OBDII connector
Operating temp. -40C° +85C°
Operating voltage 7,5V - 20V
Touch screen display
dimension
Length: 121 mm
Width: 76 mm
Height: 25 mm
What’s in the box?
Monte GT
Quick start guide
OBDII connector
Magnet mount
Car stickers
Lifetime warranty
We provide a lifetime warranty covering manufacturing defects for the lifetime of the product.
30-day return policy
You may return your order within 30 days from the delivery date in line with our standard policy.
Free worldwide shipping
Orders are shipped from US warehouses with worldwide delivery that is fast and secure .
Frequently asked questions
Monte GTR is an advanced performance tuning and vehicle monitoring system that connects to your car or truck via the OBD2 port. It combines non-invasive ECU tuning with a built-in touchscreen display, real-time gauges, performance testing tools, and full OBD2 diagnostics.
Yes. Monte GTR is a safe, non-invasive ECU tuning solution. It does not overwrite, flash, or modify factory ECU software. All adjustments operate within the vehicle’s built-in safety limits.
No. Monte GTR does not make permanent changes to the ECU. When the device is removed, the vehicle gradually returns to factory behavior through normal ECU adaptation.
No. Monte GTR does not leave software traces, flash counters, or ECU history entries. Once removed, there is no record indicating the device was ever installed.
Monte GTR optimizes factory engine parameters to improve output and drivability.
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Naturally aspirated engines: approximately 10–15% improvement
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Turbocharged engines: approximately 10–25% improvement
Results vary depending on engine type, condition, and driving conditions.
Monte GTR requires an ECU learning period. While some changes may be felt quickly, full adaptation typically completes after approximately 120 miles (200 km) of normal driving. This does not need to be completed in a single trip.
Yes. The device must remain connected to the OBD2 port to maintain tuning, monitoring, and diagnostic functionality.
Installation takes only a few minutes. Simply plug Monte GTR into the vehicle’s OBD2 port and complete the setup by selecting your preferred mode directly on the built-in screen. No tools or mechanical modifications are required.
If you selected and indicated your exact vehicle on our website when placing the order, Monte GTR is shipped pre-programmed and ready to use.
If your vehicle was not specified at checkout, you can easily set it up yourself using the Monte Programmer (Windows 10).
Yes. Monte GTR is not locked to a single vehicle and can be reused on other compatible cars or trucks.
To transfer Monte GTR to a new vehicle:
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Unplug the device from the current vehicle
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Connect Monte GTR to a Windows 10 computer
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Use the Monte Programmer (Windows 10) to upload the new vehicle profile
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Plug the device into the new vehicle’s OBD2 port
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Allow the ECU to complete its normal adaptation process
The new vehicle must be supported in the Monte database. If it is not listed, compatibility can be added.
Monte GTR does not overwrite ECU software and does not make permanent changes. Because it is removable and operates externally, it does not leave any traces of having been used. Warranty decisions are ultimately made by the vehicle manufacturer or dealer.
Yes. Monte GTR optimizes engine parameters and operates independently of transmission type, including automatic, DSG, and CVT gearboxes.
Monte GTR does not directly change throttle sensitivity. Instead, it improves torque delivery, which makes the vehicle feel more responsive during acceleration.
Monte GTR is an ECU-based performance tuning device. It optimizes engine parameters such as torque delivery and efficiency through the vehicle’s ECU.
Throttle controllers do not tune the engine. They only modify accelerator pedal sensitivity and do not change engine output, torque, or ECU behavior.
Monte GTR can be used together with a throttle controller, as they operate on different systems.
No. Monte GTR is designed to work with the manufacturer-recommended fuel grade. Higher-octane fuel is not required.
Yes. Monte GTR supports both gasoline and diesel vehicles, including turbo-diesel engines.
Monte GTR supports many hybrid vehicles equipped with an OBD2 port. Compatibility depends on the vehicle and powertrain.
Monte GTR operates within factory ECU safety parameters. In rare cases where a warning light appears, unplugging the device allows the vehicle to return to normal operation.
No. Monte GTR draws minimal power and automatically powers down when the vehicle is turned off.
Yes. Monte GTR is designed for everyday use, offering smoother torque delivery, improved drivability, live monitoring, and diagnostic confidence.
The built-in touchscreen shows customizable live data such as engine parameters, temperatures, acceleration metrics, and diagnostic information.
Yes. Monte GTR includes acceleration testing, virtual dyno functionality, and real-time performance data to help track changes before and after installation. It is also a great tool for evaluating the effectiveness of vehicle modifications.
No. The Monte GTR virtual dyno is designed for comparative testing, not absolute horsepower certification.
Yes. Monte GTR functions as a full OBD2 diagnostic device.
Monte GTR works with most OBD2-equipped vehicles. You can check compatibility using our database or contact support.
No. Monte GT remains the simpler app-based tuning option. Monte GTR is the all-in-one version for drivers who want tuning, live data, diagnostics, and performance testing in a single device.
Do you still have any questions?
Meet Anna and Kevin. They’re here to answer your questions and help you choose the right device
Average response time: 5 minutes
