Adapted Monitoring
Supported monitoring behavior is adjusted for the lower restriction of compatible high-flow catalytic-converter hardware.
MG Flasher Calibration Option
High-Flow Catalytic Converter Adaptation
Adapt supported system monitoring and calibration options for a compatible, less-restrictive high-flow catalytic converter. The selected map option must match the hardware installed on the vehicle before flashing.
Calibration option — not hardware. MG Flasher does not install or certify the catalytic converter. Use only a supported map intended for the physical exhaust configuration.
OverviewCalibrate for a
Calibrate for a
Less-Restrictive Exhaust.
Approved MG Flasher engine material describes this option as adapting system monitoring and adjusting the map to accommodate a less-restrictive exhaust. Selecting it may also make additional Custom Options available when those options require upgraded exhaust hardware.
It is intended for vehicles fitted with a compatible high-flow catalytic converter. Availability and exact behavior depend on the engine platform, ECU software, selected map, installed components and current MG Flasher support.
Simple Definition
Tell the supported calibration that the vehicle uses compatible high-flow catalytic-converter hardware.
Install HardwareCompatible high-flow catalyst
→Select AdaptationCustom Options before flash
→Flash Matching MapMonitoring and calibration aligned
What the Option Changes
Monitoring and Map Configuration.
The option adapts supported software behavior for the installed exhaust; it does not physically modify the vehicle.
Matching Map Options
The map configuration is adjusted to accommodate the supported less-restrictive exhaust setup.
Hardware-Dependent Features
Selecting the adaptation can expose additional Custom Options that require upgraded exhaust hardware.
Configuration Workflow
Match Hardware Before Flashing.
Confirm the installed exhaust and select the adaptation during the supported map-flashing workflow.
Install Compatible Hardware
Use a supported high-flow catalytic converter or exhaust configuration appropriate for the selected map.
Connect and Check Support
Connect MG Flasher and confirm vehicle, ECU software, map and option availability.
Select the Correct Map
Choose a compatible OTS Map or tuner-prepared Custom Flash calibration for the installed hardware.
Open Custom Options
Enable High Flow Catalytic Converter Adaptation where it is available for the selected calibration.
Flash the ECU
Complete the flash with stable battery voltage and an uninterrupted ENET connection.
Important Distinction
Adaptation Is Not Hardware Installation.
Several exhaust-related functions may appear similar, but they serve different purposes.
High-Flow Cat Adaptation
Adapts supported monitoring and map behavior for compatible less-restrictive catalytic-converter hardware.
Software configurationHigh-Flow Catalytic Converter
The actual exhaust component must already be correctly installed and suitable for the vehicle and calibration.
Vehicle hardwareCat Delete / Decat
A catalyst-delete setup is not the same as a high-flow catalytic converter and may require different tuner guidance and configuration.
Do not treat as equivalent
Map Support
OTS Maps and Custom Flash.
Use only a calibration that explicitly supports the installed high-flow exhaust configuration.
Compatible OTS Maps
High Flow Catalytic Converter Adaptation is listed among additional options available with supported OTS Maps.
Explore OTS Maps →Custom Flash
A custom tuner can prepare a calibration around the exact exhaust, fuel, engine and performance setup.
Explore Custom Flash →
Important Limitations
Off-Road Use Only.
Exhaust and emissions requirements vary by jurisdiction. Confirm all legal, environmental and technical requirements before modifying the vehicle.
Not an Emissions Certification
Enabling the option does not certify the vehicle or exhaust hardware for road use or regulatory compliance.
Hardware Must Match
Do not enable the adaptation for a stock exhaust or a different catalyst configuration unless directed by the correct map documentation or tuner.
No Guaranteed Power Gain
The option supports a compatible exhaust configuration but does not by itself guarantee a specific horsepower or torque increase.
Professional Guidance
Use a qualified installer or tuner when the required hardware, map choice or legal status is uncertain.
Compatibility
Check the Complete Setup.
Availability depends on the vehicle, ECU software, selected map, exhaust hardware and current MG Flasher support.
Supported Vehicle
Start with the relevant Engine or Vehicle Page and confirm support for the exact platform.
Compatible ECU Software
The installed software must support the selected map and Custom Options.
Matching Exhaust Hardware
A compatible high-flow catalytic converter must be installed before the adaptation is selected.
Correct Map
The OTS or custom calibration must be intended for the vehicle's fuel, hardware and performance setup.
FAQ
High-Flow Cat Adaptation FAQ.
Common questions about hardware, map configuration and supported use.
What does High Flow Catalytic Converter Adaptation do?
It adapts supported system monitoring and map configuration for a compatible less-restrictive high-flow catalytic converter.
Does MG Flasher install a high-flow catalytic converter?
No. This is a software calibration option. The correct exhaust hardware must be installed separately.
Is the option available with OTS Maps?
It is listed among additional options for supported OTS Maps, but availability depends on the exact vehicle, map and hardware configuration.
Can it be used with Custom Flash?
Yes, where supported. A tuner-prepared calibration should be matched to the exact exhaust, fuel and vehicle setup.
Is a high-flow catalyst the same as a cat-delete setup?
No. A high-flow catalytic converter and a catalyst-delete configuration are different hardware setups and should not be treated as interchangeable.
Does the option guarantee more power?
No. Final output depends on the complete hardware configuration, fuel, map, vehicle condition and calibration.
Is this option intended for public-road use?
MG Flasher documentation marks High Flow Catalytic Converter Adaptation for off-road use only. Check the rules that apply in your jurisdiction.
How do I confirm compatibility?
Check the relevant Engine or Vehicle Page, connect through the MG Flasher app and confirm the available map and Custom Options for the exact ECU software.
Ready to Check Your Setup?
Match the Map to the Exhaust.
Confirm the vehicle, ECU software, catalytic-converter hardware and selected calibration before flashing.