Ktuner Tuning System Rev1 In Ecu Module

Ktuner Adapter Harness For 02-04 RSX, 02-05 Civic SI, Hybrids Using 02-04 harness.
I understand this item maybe on a production wait and refunds are subject to a non-refundable transaction fee. (Please email us to check availability)
By checking this box you agree this item is not being used on a vehicle that is driven on public roads.

The KTuner In-ECU tuning package comes with a single KTuner hardware unit paired with a single user license for the KTuner software.

  • This unit is locked to one ECU and allows you to alter the settings in your ECU.
  • Full reading, reflashing, and datalogging.
  • On Board Logging (8MB) – RSX/Swap and Accord/TSX only as of 1/10/16
  • Direct Flex Fuel input for ethanol content and temperature. RSX/Swap only as of 1/10/16
  • Four (4) Analog inputs for 0-5 volt sensor signals. – All platforms.
  • Two (2) Speed inputs for VR or HALL sensors. – All platforms.
  • Peripheral port for Bluetooth, LCD displays, and additional add-ons.
  • KTuner uses direct USB connectivity for fast data transfers.

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

Ktuner installation into customer provided ecu instructions:

1. Select the Install Ktuner Into Customer Provided Ecu package along with any other options you may want such as bluetooth.
2. Your engine computer must be in clean & working condition.
3. Click add to cart & proceed to check out.
4. Once your order has been placed you will receive an email with an invoice. Do not ship your ecu until you receive a second email with instructions.
5. You will then be sent another email with instructions within 24 hours regarding mailing in your ecu into ktuner.
6. The turn around time is usually 2-4 business days for installation & 2-3 business days for return shipping.

Vehicle Applications For The In-ECU KTuner End User Board and Dealer Tuning: Swap Applications

K20 and K24 swapped vehicles All


RSX (With the use of a conversion harness) 02-04
EP3 (With the use of a conversion harness) 03-05
RSX Base 05-06
RSX Type-S 05-06


04-06 TSX 04-06

Accord And Euro-R

Accord i4 03-05
Accord i4 (Electronic Throttle) 06-07
Accord Euro-R CL7 (Cable Throttle) All
Accord Euro-R CL9 (Electronic Throttle) All


Element 03-06

*PLEASE NOTE: For Off-Road Race Use At Sanctioned Events Only.