Hondata KPro V4 for 05-06 RSX

Hondata KPro for 2005-2006 Acura RSX

Unleash the full potential of your 2005-2006 Acura RSX with the Hondata KPro ECU system — the ultimate engine management solution for serious tuners and performance enthusiasts. By combining precise fuel and ignition control with advanced data logging and tuning features, the Hondata KPro transforms your stock RSX into a fully programmable, high-performance machine. Designed specifically for the 2005-2006 RSX Type-S, this system allows full control over cam angles, boost, ignition timing, and much more — all from your laptop using Hondata’s KManager software.

The KPro ECU is a modified 2002-2004 RSX ECU (PRB, PND, PPA, or PPL) paired with a dedicated adapter harness to function seamlessly in the 05-06 RSX chassis. Hondata performs internal hardware modifications to ensure full compatibility with the updated sensors and actuators found in these later models. Once modified, this ECU will operate exclusively in 2005-2006 RSX vehicles. The included adapter harness ensures plug-and-play installation, eliminating the need for complex rewiring.

Why the Hondata KPro is a Must-Have for Your 05-06 RSX

From factory, the 2005-2006 Acura RSX ECU is locked down, preventing tuners from fully optimizing engine performance. The Hondata KPro unlocks the ability to fine-tune every aspect of the engine — from VTEC engagement to fuel and ignition mapping. Whether you’re running bolt-ons, a turbo kit, or a full engine build, the KPro provides the tuning flexibility needed to safely extract maximum horsepower and torque. It also enables immobilizer bypass for engine swaps and provides real-time data logging for accurate performance analysis. Simply put, if you’re modifying your RSX, the KPro is an essential upgrade that bridges OEM reliability with race-level customization.

Key Features:

• Specifically designed for the 2005-2006 Acura RSX
• Modified 02-04 ECU (PRB/PND/PPA/PPL) with adapter harness for full compatibility
• USB connectivity for high-speed communication and easy tuning
• Supports KManager Windows software for tuning, data logging, and live adjustments
• Compatible with a wide range of K20 and K24 engine swaps
• Onboard 8MB data logging (10–215 minutes of data capture)
• Fully configurable for larger injectors and aftermarket MAP sensors
• Advanced safety features for lean conditions, low fuel pressure, and overboost
• Launch control and anti-lag functions for enhanced track performance
• Supports Bluetooth and Hondata Mobile App integration
• Includes flex-fuel capability via ethanol sensor input
• Expanded fuel and ignition maps up to 60 PSI of boost and 11,000 RPM

Option 1: Send in Your Own Compatible ECU

Customers may choose to send in their own ECU for modification. To use this option, select “I Will Send in My Own ECU” when purchasing the Hondata KPro. After checkout, you will receive an email with a form to complete and shipping instructions for your compatible ECU. This option is ideal for those who already have a working ECU that meets Hondata’s requirements.

Option 2: Hybrid Racing-Supplied PND ECU

Hybrid Racing offers the option to supply a PND Base Model ECU for your 05-06 RSX KPro setup. This used OEM ECU comes pre-verified and modified for KPro installation. Please note that PND Base Model ECUs do not retain reverse lockout functionality. This is a great choice for those who want a plug-and-play solution without sending in their own ECU.

Option 3: Hybrid Racing-Supplied PRB Type-S ECU

The PRB Type-S ECU is the top-tier choice for the 05-06 RSX KPro. Known for its superior functionality and full feature access, this ECU provides complete control over tuning—including reverse lockout retention. All PRB ECUs are sourced, tested, and verified by Hybrid Racing to ensure performance and reliability. If you want the best possible tuning experience, this is the ECU to choose.

Compatibility:

• 2005–2006 Acura RSX Type-S
• Modified ECUs supported: 2002–2004 RSX Type-S (PRB A03-A08, PRB-305), 2002–2004 RSX Base (PND-A01-A09), 2002–2006 CR-V (PPA/PPL)

The Hondata KPro is more than just an ECU — it’s the brain upgrade your K20A2-powered RSX deserves. Whether you’re daily driving or preparing for the track, the KPro gives you complete control over how your engine performs. From live tuning to detailed datalogging, the system is built to evolve with your setup and driving style.

Note: The 05–06 KPro is certified only for use in the 2005–2006 RSX chassis. Some sensors may need to be disabled to prevent ECU errors. The 05–06 O2 sensor is incompatible — use an O2 sensor from an 02–04 RSX or 02–05 Civic Si. Cruise control functionality may vary at higher speeds due to speed sensor differences. For off-road or racing use only. Not legal for highway use in the United States.