WARNING! THIS PRODUCT IS FOR OFF-ROAD MOTORSPORT/COMPETITION RACING USE ONLY, NEVER TO BE USED ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. 

KTuner Flash-based system for 2022-2024 Civic 2.0. The KTuner Flash system allows you to reprogram/reflash your stock ECU directly over your OBD2 diagnostic port. No need to remove your ECU, etc. Simply plug the KTuner Flash system into your OBD2 port under your dash and reflash or tune your car using the KTuner software and your laptop. Using the KTuner Flash system, you can retain all of your factory drivability, emissions, and reliability, while still being able to tune your engine for modifications (ie: intake, exhaust, cam upgrades, etc). The result will be a much better running engine with increased power!

What is included with the KTuner Flash system?

• KTuner hardware (part that plugs into your OBD2 port)
• USB cable (plugs into your laptop on one end, and into the KTuner hardware on the other end)
• Pair of KTuner window decals
• KTuner software (download for free here: http://ktuner.com/downloads/)

What does the KTuner software look like?

The KTuner software has a beautiful, customizable interface that allows you to view and edit your tuning parameters, fuel tables, and so much more. You can check out an overview of the software for free here: http://ktuner.com/ktuner-software/

How do I get the KTuner software?

To use the KTuner Flash system, you will need to download the KTuner software onto your laptop. A Windows laptop is required for use. You can view the laptop requirements, as well as download the software for free here: http://ktuner.com/downloads/

Part numbers for usable ECUs include:

Manual Transmission:

• 37820-64S-A31 through A34
• 37820-64S-AB1 through AB2

CVT Transmission:

• 37820-64S-A51 through A55
• 37820-64S-A71 through A75
• 37820-64S-AA1 through AA2
• 37820-64S-AC1 through AC2

We are currently offering one research calibration for this application.  The tune can be ran with 87 octane fuel, but running 91+ octane fuel will give the best results.

Tune 1:

• Improved throttle response
• VTEC lowered to 5300
• Mid-range and Top-End power increases.

Flash Back To Stock At Any Time