Control How Long It Lasts
Adjust the length of the configured Startup Roar event before the engine returns to its regular startup and idle behavior.
MG Flasher Calibration FeatureStartup Roar
Startup Roar
GTS Startup
Give a supported BMW a louder and more aggressive startup character. MG Flasher lets compatible users adjust Startup Roar duration and aggression through available in-app calibration sliders before flashing.
Available as a supported calibration option Explore OTS Maps →
OverviewA More Distinctive
A More Distinctive
Engine Start.
Startup Roar, also known as GTS Startup, changes the supported startup calibration to create a louder and more aggressive initial engine-start behavior. It is designed for users who want the vehicle to feel more distinctive from the moment the engine starts.
The feature is configured through available in-app settings before flashing. It is not an On-The-Fly CCM function, and its availability depends on the exact engine, ECU software, map package and calibration options offered for the vehicle.
Simple Definition
Adjust how the supported vehicle sounds and behaves immediately after startup.
Start EngineInitial startup event
→Startup RoarConfigured duration and aggression
→Normal IdleVehicle returns to regular operation
In-App Calibration
Shape the Startup Character.
Compatible setups provide sliders that let the user experiment with duration and aggression.
Control How Pronounced It Feels
Increase or reduce the aggression of the supported startup calibration to better match the vehicle and the driver’s preference.
Test and Refine
Try different supported settings and choose the combination that best suits the vehicle, exhaust hardware and intended use.
Configuration Workflow
Set It Before Flashing.
Startup Roar is selected and configured as part of the supported map-flashing workflow.
Connect the Vehicle
Open MG Flasher, connect to the supported car and confirm the available map and ECU options.
Select the Map
Choose the compatible OTS or custom calibration intended for the vehicle and hardware setup.
Open Custom Options
Enable Startup Roar where it is available and review the supported adjustment controls.
Adjust the Sliders
Set the preferred duration and aggression, then continue with the normal flashing process.
Start and Evaluate
After a successful flash, start the vehicle and decide whether the selected character suits the setup.
Related Startup & Exhaust Features
Three Different Functions.
Startup Roar, Cold Start Adjustment and Burbles affect different parts of vehicle behavior.
Startup Roar
Creates a louder and more aggressive startup character for a supported vehicle.
Duration + aggressionCold Start Adjustment
Adjusts supported factory cold-start behavior and can be used for a quieter initial idle.
Quieter startup optionBurbles On-The-Fly
Changes supported exhaust burble profiles during deceleration rather than the initial engine start.
Driving sound profiles
Actual ResultThe Same Setting Can
The Same Setting Can
Sound Different on Two Cars.
The feature changes calibration behavior, but the final result depends on the complete vehicle setup.
Engine Platform
Different engines and software versions can respond differently to the available calibration.
Exhaust Hardware
Factory and modified exhaust systems can produce a different perceived startup character.
Selected Calibration
The available map package and implementation determine which adjustments can be applied.
Chosen Settings
Duration and aggression directly influence the configured behavior within the supported range.
!
Use responsibly
A more aggressive startup may be significantly more noticeable in enclosed areas or near other people. Use settings that suit the vehicle, location and applicable noise requirements.
Compatibility
Check the Exact Vehicle and Map.
Startup Roar availability is not universal across every MG Flasher-supported vehicle.
Supported Engine
The engine platform must list Startup Roar among its available MG Advanced Features.
Compatible ECU Software
The exact DME software and available calibration package must support the option.
Available Map Option
The selected OTS or custom map must expose Startup Roar in its supported flashing options.
Check in the App
Connect the vehicle and review the actual options shown for its ECU, map and current software.
FAQ
Startup Roar FAQ.
Common questions about GTS Startup, supported settings and compatibility.
What is MG Flasher Startup Roar?
Startup Roar is a supported calibration option that creates a louder and more aggressive engine-start character. It is also referred to as GTS Startup.
What can I adjust?
Compatible setups provide in-app sliders for Startup Roar duration and aggression. The exact available range depends on the supported implementation.
Is Startup Roar an On-The-Fly feature?
No. It is configured as part of the supported map-flashing options rather than through the Custom Code Menu while driving.
Is Startup Roar the same as Cold Start Adjustment?
No. Startup Roar adds a more aggressive startup character. Cold Start Adjustment modifies supported factory cold-start behavior and may be used to make startup quieter.
Is Startup Roar the same as Burbles?
No. Startup Roar affects the initial engine-start event, while Burbles On-The-Fly changes supported overrun sound profiles during driving.
Will the same settings sound identical on every BMW?
No. The final result depends on the engine, ECU software, exhaust hardware, selected map and the available feature implementation.
Does every MG Flasher-supported vehicle have Startup Roar?
No. Availability varies by engine platform, ECU software, map package and supported options. Check the relevant Engine Page and the options displayed in the app.
How do I enable Startup Roar?
Connect the supported vehicle, select the correct map, open the available Custom Options, enable Startup Roar, adjust the supported sliders and complete the flash.
Ready to Check Your Vehicle?
Give Your BMW a More Distinctive Start.
Confirm compatibility, choose the correct map and review the Startup Roar options available for your ECU.