Hondata 2016-2021 Honda Civic 1.5T FlashPro

Hondata 2016-2021 Honda Civic 1.5T FlashPro



Shipping calculated at checkout

In Stock


The FlashPro allows full user tuning and datalogging for your 2016-2021 US Civic & 2017-2021 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. 


Within the USA this product is legal only for racing vehicles which may never be used upon a public highway.

Sales Market

This FlashPro can only be sold to US/Canada addresses.


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.


FlashPro Manager software's advanced datalogging and live tuning capabilities combined with thoroughly tested base maps allow your car to be tuned faster and more accurately than any other solution on the market. You will love the way your engine's response is improved.

Introducing Hondata Sport Mode

Introducing the Hondata Sport mode;  a revolutionary enhancement. In addition to Honda's suspension, steering and throttle improvements the Hondata Sport mode adds 27 hp and 40 lb-ft torque to make the best use of the Civic Si's sport mode improvements. 

Hondata's full throttle shift is the quickest way through the gears. Just dip the clutch and change gear with your right foot pegged to the floor. Hondata's full throttle shift algorithm cuts the engine power until the clutch is released. Eliminate your boost lag, improve your 0-60 and 1/4 mile times all while having a ton more fun.

FlashPro features

2017+ Software editing


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


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.


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.


Check ECU Compatibility

To ensure that you order the correct FlashPro we recommend that you check your ECU is supported.

ECU part number  


The ECU part number is located on the ECU. The ECU is located in the engine bay near the battery. You may need to remove a plastic cover in order to see the sticker containing the part number.


Sales Region US/Canada Only
EPA/CARB status (USA) Competition vehicles only
Model Civic
Year 2017-2021
Market US
Trim Si
Engine L15B7
Transmission MT
Part Number

5AA-A51 through 5AA-A59 US
5AA-L51 through 5AA-L59 US
5AA-A61 through 5AA-A69 US
5AA-L61 through 5AA-L69 US
5AA-A06 through 5AA-A09 US
5AA-A81 through 5AA-A83 US
5AA-L81 through 5AA-L83 US
5AA-A11 through 5AA-A13 US
5AA-A71 through 5AA-A73 US
5AA-L71 through 5AA-L73 US
5AA-A91 through 5AA-A95 US
5AA-L91 through 5AA-L95 US
5AJ-A51 through 5AJ-A53 US
5AJ-L51 through 5AJ-L53 US
5AJ-A61 through 5AJ-A63 US
5AJ-L61 through 5AJ-L63 US
5AJ-A71 through 5AJ-A75 US
5AJ-L71 through 5AJ-L75 US
5AN-A02 through 5AN-A06 US
5AN-A11 through 5AN-A17 US
5AN-A61 through 5AN-A65 US
5AN-L61 through 5AN-L65 US
5AN-952 through 5AN-955 US
5AN-B52 through 5AN-B55 US
5AN-A71 through 5AN-A76 US
5AN-L71 through 5AN-L76 US
5AN-A81 through 5AN-A86 US
5AN-L81 through 5AN-L86 US
5AN-A91 through 5AN-A96 US
5AN-L91 through 5AN-L96 US
5AN-A11 through 5AN-A14 US
5AN-A51 through 5AN-A56 US
5AN-L51 through 5AN-L56 US
5AN-AF1 through 5AN-AF3 US
5AN-LF1 through 5AN-LF3 US
5AN-AG1 through 5AN-AG3 US
5AN-LG1 through 5AN-LG3 US
5AN-AH1 through 5AN-AH3 US
5AN-LH1 through 5AN-LH3 US
5AN-AJ1 through 5AN-AJ4 US
5AN-LJ1 through 5AN-LJ4 US
5AN-A21 through 5AN-A22 US
5AN-AK1 through 5AN-AK3 US
5AN-LR1 through 5AN-LR3 US
5AN-AR1 through 5AN-AR3 US
5AN-LS1 through 5AN-LS3 US
5AN-AL1 through 5AN-AL3 US
5AN-A31 through 5AN-A33 US
5AA-C11 through 5AA-C13 Canada
5AA-C81 through 5AA-C83 Canada
5AN-C01 through 5AN-C06 Canada
5AN-C12 through 5AN-C14 Canada
5AA-C51 through 5AA-C56 Canada
5AA-C61 through 5AA-C69 Canada
5AA-C92 through 5AA-C95 Canada
5AN-C31 through 5AN-C37 Canada
5AN-C71 through 5AN-C76 Canada
5AN-C61 through 5AN-C66 Canada
5AN-CH1 through 5AN-CH3 Canada
5AN-C41 through 5AN-C42 Canada
5AN-CC1 through 5AN-CC2 Canada
5AN-CR1 through 5AN-CR2 Canada
5AN-CA1 through 5AN-CA3 Canada
5AA-X51 through 5AA-X56 Mexico
5AA-X61 through 5AA-X62 Mexico
5AA-X71 through 5AA-X72 Mexico
5AA-K04 through 5AA-K07 Central Ameica
5AA-K14 through 5AA-K18 Central Ameica
5AA-K24 through 5AA-K28 Central Ameica
5AA-K51 through 5AA-K57 Central Ameica
5AN-K51 through 5AN-K53 Central Ameica
5AA-K61 through 5AA-K67 Central Ameica
5AA-K71 through 5AA-K77 Central Ameica
5AA-P51 through 5AA-P52 South America
5AG-PF1 through 5AA-PF2 Carribean
5AA-M51 through 5AA-M53 Brazil
5AA-M61 through 5AA-M62 Brazil
5AA-M71 through 5AA-M72 Brazil

5AM-(A02-A04) US
5AM-(C02-C04) Canada
5AM-(K02-K04) South America