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Solution Graphics
Hondata Kpro4

Points Credit : 690.00 points Currently valued at $13.80

Available Options:
Add Clear ECU Cover:
We are an Authorized Hondata Dealer and KPRO Installer which means we can do the modifications to the ECU and install the KPRO board into your ECU at our facility.

Xenocron Tuning does not sell Hondata products outside the US

If you are an international customer, Please follow this LINK to find your nearest dealer

The K-Series Programmable ECU (K-Pro) consists of a hardware modification to any K-Series ECU, plus Windows software which allows you to re-program the ECU and datalog sensors.

Fourth Generation KPro

The KPro4 is the 4th generation board made by Hondata, superseding all previous versions, with a more powerful processor, enhanced on board datalogging, faster upload and datalogging, live tuning and autotune, Bluetooth, ethanol sensor input, dash outputs, advanced protection and closed loop wideband support. 

Previous KPro versions are the KPro3 (red board), KPro2 (green board - serial #4111 onwards) and original KPro (green board - up to serial #4111).

Counterfeit and on-line auction site warning
Protect yourself from purchasing a counterfeit K-Pro. The only known counterfeits use a green circuit board.

Do not purchase new Hondata items from online auction sites such as E-Bay. There is a high risk of being scammed or being sold a counterfeit. Hondata dealers do not sell through on-line auction sites.


Click on your specific application for details and pricing.  Hondata does not sell directly to customers. To order, fill out this form and contact a Hondata dealer

Acura RSX/ Honda Integra

Price Description
$250 Upgrade cost from working previous generation KPro (use this form)
$400 Upgrade cost for existing qualifying Hondata reflash. (ECU must be sent to Hondata or authorized dealer).
$695 Retail price (ECU must be sent to Hondata or authorized installer).
$1320 K-Pro with new Honda PRB ECU based off US RSX-S
  • 2005-2006 RSX (manual transmission with adapter harness and modified 02-04 ecu and O2 sensor)
Price Description
$250 Upgrade an already K-Pro'd ecu for use in an 05-06 RSX (includes adapter harness and ecu modification)
$845 K-Pro for 2005-2006 RSX includes adapter harness.
$1470 K-Pro for 2005-2006 RSX includes adapter harness (with new Honda ECU)

Honda Civic

  • 2001-2005 Civic (DX, LX, HX & EX Manual transmission only D17 engine )
  • 2002-2005 Civic Si (PNF ECU)
  • 2003-2004 Japanese Civic Type R (PRD ECU)
  • 2002-2005 Euro CivicType R  (PRA ECU) Contact your European dealer for prices
Price Description
$400 Upgrade cost for existing qualifying Hondata reflash. (ECU must be sent to Hondata or authorized installer).
$695 Retail price (ECU must be sent to Hondata or authorized dealer).
$1320 K-Pro with new Honda PRB ECU based off US RSX-S
$180 Hondata specific D17 cam gear for those who already have a K-Pro
$875 D17 K-Pro installed in a customer supplied donor ECU with Hondata cam gear


Honda S2000

  • 2000-2005 S2000 (built in adapter harness, requires some modifications to sensors)
Price Description
$1520 00-05 S2000 K-Pro in a new ECU with wiring harness and bracket.
$1095 00-05 S2000 K-Pro in a user supplied PRB ECU with wiring harness and bracket.
$450 00-05 To convert an existing K-Pro and ECU to S2000 K-Pro with wiring harness and bracket.
  • 2006-2009 S2000 Dual adapter harness. Discontinued. Replaced by FlashPro

Honda Element

  • 2003-2006 Element (manual transmission with adapter harness and modified 02-04 ecu)
Price Description
$250 Upgrade an already K-Pro'd ecu for use in an 03-06 Element (includes adapter harness and ecu modification)
$845 K-Pro for 2003-2006 Element includes adapter harness.
$1470 K-Pro for 2003-2006 Element includes adapter harness (with new Honda ECU)


  • Engine Swaps - Must use 02-04 Engine harness and 02-04 Transmission
Price Description
$695 Retail price (ECU must be sent to Hondata or authorized dealer).
$1320 K-Pro with new Honda PRB ECU based off US RSX-S

Main features:

  • Fits inside the ECU
  • Designed and assembled in USA
  • USB connection for speed and compatibility
  • KManager Windows based software for parameter & table editing, calibration uploading and datalogging.
  • Many built in calibrations for common engine combinations
  • Built in datalogging to a laptop
  • On board datalogging memory (8 MB memory, 10-215 minutes datalogging)
  • Adjustment for different sized injectors, with overall fuel trim.
  • Configurable for any MAP sensor (to 5 Bar and above)
  • TPS based table lookup for ITBs
  • Engine protection from lean air fuel ratios, over boost and low oil/fuel pressure.
  • Expanded fuel and ignition tables, both in rpm and load, to 60 lbs boost and 11,000 rpm (these are not the upper limits)
  • Launch control with anti-lag
  • Three multi purpose outputs for nitrous control or similar.
  • Supports lambda tracing from the stock wideband o2 or aftermarket wideband.
  • PWM output for boost control
  • Bluetooth support and Hondata Mobile app.
  • Ethanol sensor input for flex fuel capability.
  • Alternate speed sensor input.
  • Dash output serial & CAN streams.
  • Live tuning and auto tune.

KManager editing software features:

  • High and low speed 16 x 20 ignition and fuel tables at multiple cam angles for correct VTEC and VTC tuning.
  • Injector size fuel trim
  • Fuel trim for starting, throttle tip in and individual cylinder trim
  • Rev limiter with fuel cut
  • Launch control with anti-lag
  • Adjustable VTEC window with load and throttle control
  • Adjustable idle speed
  • MAP sensor type and calibration
  • Adjustable boost cut with hot and cold settings
  • Closed loop control
  • Air temperature compensation
  • Fuel and ignition correction based on gear
  • Closed loop
  • Three general purpose outputs for nitrous control, quad boost control or similar
  • On board datalogging trigger conditions

Application Notes

  • Base maps are included only for K20A2, K20A3 (RSX Base), K20A3 (Civic SI) and K20A engines.
  • The 2002- CRV ECU (5 speed) (PPA -A0# ECU) can be used.
  • Support for the manual K20A3 engine and the secondary intake runner as used in the base model RSX and CRV. 
  • The Japanese PRD and PRC ECU do not support a fuel tank pressure sensor.
  • PNF, PPA and PND ECUs for 5 speed transmissions will not operate the reverse lock solenoid on 6 speed transmissions.
  • The K-Pro ECU will not work on Automatic vehicles.  Automatic ECUs cannot be converted to manual.
  • To use the K-Pro on a 2005-2006 RSX, an adapter harness is required, an 02-04 specially modified ECU must be modified for used and the primary oxygen sensor from an 03-04 must be used.
  • Turn around time is usually 2 days from the time it is received.

General Notes

  • From previous ECU's Honda has changed from 2 dimensional tables (engine speed and engine load) to 3 dimensional tables (engine speed, engine load and cam angle). The K-Pro ECU retains these 3 dimensional tables to ensure the engine is running at optimum efficiency and power for every cam angle.
  • The stock JDM and US O2 sensor is wide band and can read from 11.5:1 to 30:1 A/F ratios.
  • Most OBDII features may be disabled for race vehicles.
  • Error codes and the OBDII readiness status may be datalogged.
  • Base tables are supplied for the RSX Type S, RSX Base, Civic SI and Integra Type R engines. These tables have been dyno tuned.
  • No external programmer or other equipment is necessary. Just plug the ECU into a laptop via a USB cable.
  • Tables may be map-traced in real time.
  • Main tables are real-time updateable, changes to other tables and settings can be uploaded typically in less than a second. 
  • D17 engines require the Hondata D17 AEM Cam Gear!!!!

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Phone: 845-504-5340
301 Route 17 South, Unit 1, PO BOX 11, Hillburn, NY 10931