KTuner LLC

KTuner V1.2 Tuning Package w/ Free TSP Tune & 2 Day Shipping!

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  • Regular price $449.00

Customer Reviews

Based on 18 reviews
Whole new car!

If you have anything with the 1.5t, you need KTuner. It completely transforms the car into something else. I can’t help but smile every time I go for a drive now.


Loving the new addition to my 19 Si Coupe!!!

Tune 3

Feels so good. Have to buy some new wheels so the tires stop spinning!

This is how the civic si should have came from the factory

What can I say I put the k tuner on locked it to my car loaded the tap stage 1 time to my laptop loaded onto k tuners app and now it’s on my car took about 40 mins uh my car is fast as shit now , I don’t wanna incriminate my self by saying how much fun I’ve had pushing it more now with ease still feels stock w reliability no cel’s no weird things happening its like new and normal just with added speed

Great 1st Upgrade to the Civic Si

The Ktuner with the tsp stage 1 is my 1st upgrade to my 2020 Civic Si.. And I couldn't be happier with my purchase. Corey was very easy to deal with and very responsive to my emails.. I ordered my Ktuner on 1/16/2020 and got it in the mail the next day. I tired the Ktuner base tune for the 1st couple of days before I loaded the stage 1 and the Stage was felt more smoother over all.

Will definitely be purchasing from TwoStepPerformance again in the future

The KTunerFlash V1.2 tuning package comes with a single KTuner hardware unit paired with a single user license for the KTuner software.

  • Includes our famous TSP Stage 1 map for Si or Non-Si! The tune will automatically be sent if you specify an eligible vehicle before adding to cart. **All standard KTuner base maps are also included regardless of your selection.**
  • This unit is locked to one ECU and allows you to alter the settings in your ECU.
  • Return to factory at any time and unlock the unit to resell.
  • This allows datalogging and reflashing right over your factory OBD2 port!
  • Store multiple tunes, including factory. Flash stored tunes directly from our TunerView App!
  • Note: Tunes are still created with the KTuner PC software.
  • On Board Logging, record datalogs without the need for a laptop.
  • Bluetooth connectivity for peripherals and the TunerView Android app.
  • Extended data parameters available on certain vehicles.
  • Diagnose any Honda/Acura CAN vehicle, even when already locked to a vehicle.
  • KTuner uses USB connectivity for fast data transfers.


Please see the list of supported vehicles for platform specific information.

For TSP Tune, please verify that your ECU is supported via our TSP Tune Compatibility List prior to purchase.

Looking for a custom tune as well? We have partnered with Derek Robinson of Innovative Motorworks and can bundle one with your Ktuner at a special rate.