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Hondata K-Pro Version 4

Hondata K-Pro Version 4-A1
Hondata K-Pro Version 4-A2
Images may be for reference only

Hondata K-Pro Version 4

5 out of 55 out of 55 out of 55 out of 55 out of 5 57 customer reviews
$690.00 & Free Shipping

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Hondata KPro4 (Version 4) is a fully programmable ECU for 02-04 Acura RSX (DC5), 02-05 Honda Civic Si (EP3), and any K Swapped vehicle. K-Pro is a must have to get maximum performance out of your k-series engine.


  • USB connection for speed and compatibility
  • KManager Windows based software for parameter and table editing, calibration uploading and datalogging.
  • Many built in calibrations for common engine combinations
  • Built in datalogging to a laptop
  • On board datalogging memory (2 MB memory, 10-110 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 over boost and lean protection.
  • Launch control with anti-lag
  • Three multi purpose outputs for nitrous control or similar
  • Supports lambda tracing from the stock wideband o2
  • PWM output for boost control
  • Most OBDII features may be disabled for race vehicles.
  • Base tables are supplied for the RSX Type S, RSX Base, Civic SI and Integra Type R engines. These tables have been dyno tuned.

Compatible ECUs
(PRB A01-A12 & 305) (PND A01-A09) (PRC) (PNF) (PRD) (PRA) (PPA)


After you order you will receive two emails; one with full instructions on where and how to send your ECU to Hondata and another with the form that you need to sign and include with your ECU.

You are required to send your ECU to Hondata for this service an ECU is not sent to you.

This product is final sale.


Brand: Hondata
Part Number: K-Pro for 02-04 RSX
CARB Approved: No

Vehicle Fitment

K Series engine swap requried

Acura Integra
Acura RSX
Honda Civic
Honda CRX
Honda Del Sol

57 Reviews 5 out of 55 out of 55 out of 55 out of 55 out of 5

5.0 out of 5.0 5 out of 55 out of 55 out of 55 out of 55 out of 5

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Most Recent

5.0 out of 5.0 5 out of 55 out of 55 out of 55 out of 55 out of 5

Untapped Smile per Gallon

By Chris Ket on 7/11/2019

Was on the fence for years about dropping the money on this. I finally did and all I can say is WOW. Even on a cai map it made a world of difference. This is a necessity if you own a K series! Torque right out the gate now is nice

5.0 out of 5.0 5 out of 55 out of 55 out of 55 out of 55 out of 5

Kpro 04 rsx type s

By Angel Hernandez on 8/10/2018

I shipped my ECU Monday, arrived Wednesday at hondata in the same day they shipped it back to me and received my kpro ECU on Thursday. I was really surprised on how easy it is to get a basemap working on my K20 turbo setup.

5.0 out of 5.0 5 out of 55 out of 55 out of 55 out of 55 out of 5


By Gabriel Kraft on 4/28/2017

Got this K-Pro for my K24 swapped EP3 and it's definitely worth it. Way more user friendly than I expected for how extensive the options are.

5.0 out of 5.0 5 out of 55 out of 55 out of 55 out of 55 out of 5

Worth every Penny

By Will B. on 4/21/2017

I wasn't 100% sure what I was getting into, but it's fantastic! My only complaint is that I'm going to have to justify making more purchases to my wife! The software is easy to use, and the results are instantaneous! I also recommend downloading the phone app as you can see all the useful information and even clear DTCs right on your phone! Awesome all around and only wish I had bought it sooner.

5.0 out of 5.0 5 out of 55 out of 55 out of 55 out of 55 out of 5

A must have!

By Luis Quintero on 11/27/2016

Well worth the money. Now all my bolt ons are actually noticeable. And I got my ecu back the day after they reviewed it!

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