Title
Hondata FlashPro Civic Si 2017-2021 Turbo 1.5 US
The FlashPro allows full user tuning and datalogging for your Civic Si 1.5 Turbo. It includes Windows based software called FlashProManager. The FlashPro connects from your laptop's USB port to your vehicles diagnostic port to provide live tuning with a variety of calibrations, extensive real time and stored datalogging capabilities.
Sales Market
This FlashPro can only be sold to US/Canada addresses.
Features
- Programmable ECU interface.
- Connects via OBDII diagnostic port.
- USB 2.0 connection
- Works with Laptop or Desktop
- No ECU modification necessary.
- Live Tuning
- 20 hours on board datalogging memory.
- Security Password.
- FlashProManager Windows software.
- Check and clear diagnostic codes.
- Custom laptop gauges.
- Dual calibration storage - upload from one of two calibrations stored in the FlashPro
- Bluetooth connection for Mobile connectivity
The Hondata FlashPro is a hardware and software combination that connects from your laptop's USB port to your Civic's diagnostic port. It enables you to tune your engine computer for:
- Hondata Sport Mode
- Intakes
- Exhausts
- Higher octane fuel
- Higher Boost levels
The FlashPro Manager software comes with several built in calibrations. You will find a base map that is a great fit for your car.
The FlashPro has the best datalogging capability and support in the industry. There is simply no better way to learn how your engine runs and responds than by connecting a FlashPro and datalogging. See for yourself.
The Hondata FlashPro is a product that delivers all the features you need, now, fully working, that will grow with you as you upgrade your engine. With live tuning capabilities, your tuner can now tune your car faster and more accurately.
The FlashPro is designed, manufactured and assembled in the USA. As a result of local assembly, extensive testing before shipping and our stringent quality control, the FlashPro is incredibly reliable.
Dyno
Hondata is the world leader in tuning Honda engines and have many world records to prove this. Every map listed here has been comprehensively tuned for fuel, ignition and boost.
Listed here are dyno plots of several of the many base maps provided with the FlashPro.
How the FlashPro will perform on a stock Civic Si ? The answer is superbly!
With a 100% stock Civic Si Turbo you will benefit from:
- 27 HP and 40 lb-ft torque
- Improved turbo spool
- Raised boost limits
- Better throttle response
- Better mid range power and torque
- Removed speed limit
- No change in part throttle fuel economy
- World class datalogging - which will teach you a lot about your engine.
Base map:
- Dotted green line stock Si. 205 hp 235 lb-ft torque.
- Solid green line Hondata +6 psi reflash. 233 hp 258 lb-ft torque

+ 9 PSI calibration
The supplied +9 psi calibration (light blue line) is capable of generating 272 lb-ft torque. In our dyno testing we found the stock clutch beginning to slip. The Dynapack dyno is very hard on the drivetrain and is more likely to cause slip than street driving with stock tires. Our road testing to date has shown no clutch slip with the + 9 psi calibration. We recommend using the +6 psi calibration and an upgraded clutch.

Mitsubishi Turbo Si calibration
Stock cat, intake and exhaust. 93 octane.
Clutch recommended
- Dashed green line stock Si. 205 hp 235 lb-ft torque.
- Dotted red line Mitsubishi turbo. 250 hp 275 lb-ft torque

Videos
Browse through our 10th Generation Civic video playlist.
Hondata Traction Control
We've put together a series of training videos to describe the function and use of the FlashPro. View the videos in High Definition Full Screen to view the screen shots.
FlashPro Introduction
Hondata's new generation programming tool for the 06 - 09 US Civic Si, the Japanese 06-09 Civic Type R and the European 07-09 Civic Type R. A brief introduction.
FlashPro getting started
This video covers the installation the FlashPro Manager software, the USB drivers, software registration and upload of a calibration.
Live Tuning
One of the latest features added to FlashPro, live tuning gives you the ability to tune your Honda or Acura on the fly without switching off the engine. Live tuning simplifies part throttle tuning and significantly reduces the time and cost of tuning your car.
Race Calibration
Hondata has developed a Race calibration which allows you to tune with the MAP sensor and bypass the limitations of the AFM sensor. A look at the tuning principles for forced induction on a modern return-less fuel system.
Datalogging and Air fuel ratios
A look a the extensive datalogging capabilities of the FlashPro and the many ways in which to examine your engine data. We touch on the datalogging of the air fuel ratios and how you can use it to adjust your tuning.
Bluetooth
All 10 generation Civic FlashPros include Bluetooth for a seamless connection to your ECU. Now you can display all your engine operating parameters in real time from your mobile device with the free Hondata mobile app.
The FlashPro allows full user tuning and datalogging for your Civic Si 1.5 Turbo. It includes Windows based software called FlashProManager. The FlashPro connects from your laptop's USB port to your vehicles diagnostic port to provide live tuning with a variety of calibrations, extensive real time and stored datalogging capabilities.
Sales Market
This FlashPro can only be sold to US/Canada addresses.
Features
- Programmable ECU interface.
- Connects via OBDII diagnostic port.
- USB 2.0 connection
- Works with Laptop or Desktop
- No ECU modification necessary.
- Live Tuning
- 20 hours on board datalogging memory.
- Security Password.
- FlashProManager Windows software.
- Check and clear diagnostic codes.
- Custom laptop gauges.
- Dual calibration storage - upload from one of two calibrations stored in the FlashPro
- Bluetooth connection for Mobile connectivity
The Hondata FlashPro is a hardware and software combination that connects from your laptop's USB port to your Civic's diagnostic port. It enables you to tune your engine computer for:
- Hondata Sport Mode
- Intakes
- Exhausts
- Higher octane fuel
- Higher Boost levels
The FlashPro Manager software comes with several built in calibrations. You will find a base map that is a great fit for your car.
The FlashPro has the best datalogging capability and support in the industry. There is simply no better way to learn how your engine runs and responds than by connecting a FlashPro and datalogging. See for yourself.
The Hondata FlashPro is a product that delivers all the features you need, now, fully working, that will grow with you as you upgrade your engine. With live tuning capabilities, your tuner can now tune your car faster and more accurately.
The FlashPro is designed, manufactured and assembled in the USA. As a result of local assembly, extensive testing before shipping and our stringent quality control, the FlashPro is incredibly reliable.
Dyno
Hondata is the world leader in tuning Honda engines and have many world records to prove this. Every map listed here has been comprehensively tuned for fuel, ignition and boost.
Listed here are dyno plots of several of the many base maps provided with the FlashPro.
How the FlashPro will perform on a stock Civic Si ? The answer is superbly!
With a 100% stock Civic Si Turbo you will benefit from:
- 27 HP and 40 lb-ft torque
- Improved turbo spool
- Raised boost limits
- Better throttle response
- Better mid range power and torque
- Removed speed limit
- No change in part throttle fuel economy
- World class datalogging - which will teach you a lot about your engine.
Base map:
- Dotted green line stock Si. 205 hp 235 lb-ft torque.
- Solid green line Hondata +6 psi reflash. 233 hp 258 lb-ft torque

+ 9 PSI calibration
The supplied +9 psi calibration (light blue line) is capable of generating 272 lb-ft torque. In our dyno testing we found the stock clutch beginning to slip. The Dynapack dyno is very hard on the drivetrain and is more likely to cause slip than street driving with stock tires. Our road testing to date has shown no clutch slip with the + 9 psi calibration. We recommend using the +6 psi calibration and an upgraded clutch.

Mitsubishi Turbo Si calibration
Stock cat, intake and exhaust. 93 octane.
Clutch recommended
- Dashed green line stock Si. 205 hp 235 lb-ft torque.
- Dotted red line Mitsubishi turbo. 250 hp 275 lb-ft torque

Videos
Browse through our 10th Generation Civic video playlist.
Hondata Traction Control
We've put together a series of training videos to describe the function and use of the FlashPro. View the videos in High Definition Full Screen to view the screen shots.
FlashPro Introduction
Hondata's new generation programming tool for the 06 - 09 US Civic Si, the Japanese 06-09 Civic Type R and the European 07-09 Civic Type R. A brief introduction.
FlashPro getting started
This video covers the installation the FlashPro Manager software, the USB drivers, software registration and upload of a calibration.
Live Tuning
One of the latest features added to FlashPro, live tuning gives you the ability to tune your Honda or Acura on the fly without switching off the engine. Live tuning simplifies part throttle tuning and significantly reduces the time and cost of tuning your car.
Race Calibration
Hondata has developed a Race calibration which allows you to tune with the MAP sensor and bypass the limitations of the AFM sensor. A look at the tuning principles for forced induction on a modern return-less fuel system.
Datalogging and Air fuel ratios
A look a the extensive datalogging capabilities of the FlashPro and the many ways in which to examine your engine data. We touch on the datalogging of the air fuel ratios and how you can use it to adjust your tuning.
Bluetooth
All 10 generation Civic FlashPros include Bluetooth for a seamless connection to your ECU. Now you can display all your engine operating parameters in real time from your mobile device with the free Hondata mobile app.
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