Hondata KPro V4 for 05-06 RSX

Hondata KPro for 2005-2006 Acura RSX

If you’ve got an 05 to 06 Type S, you already know the factory ECU doesn’t play nice with real tuning. The Acura RSX KPro ECU setup fixes that. With Hondata KPro V4 for RSX, you get full control of fuel, ignition, VTEC, cam angles, boost tables, and the stuff you actually care about when you stop pretending bolt ons don’t need calibration. You tune it from your laptop in KManager, log runs, make changes, then go prove it on the street or track. We run KPro setups on our own cars because guessing is expensive.

Here’s what you’re actually buying when you buy Hondata KPro V4, or when you’re looking to buy Hondata RSX V4 as a KPro 05-06 RSX upgrade. It’s a modified 2002 to 2004 RSX ECU, PRB, PND, PPA, or PPL, plus a Hondata adapter harness RSX owners need so that ECU works in the 05 to 06 chassis. Hondata performs the internal hardware changes for compatibility with the later sensors and outputs, and once it’s converted it’s meant to live in 2005 to 2006 RSX cars only. The harness keeps it plug in, no repinning nightmares.

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

The stock 05 to 06 ECU locks you out, so you either live with whatever the car wants, or you do a proper RSX KPro aftermarket setup. KPro ECU for RSX gives you the ability to tune injector size, MAP scaling, ignition timing, fuel, VTEC crossover, boost control strategies, and more. That matters on a basic intake header exhaust car, and it matters even more on a turbo kit or a built K24 swap where a bad guess can turn into a bad day. You also get immobilizer bypass support for swaps, plus datalogging so you can stop tuning by feel. This is the honest path to a custom RSX ECU KPro that you can actually dial in.

Key Features:

• Built for the 2005-2006 Acura RSX Type-S chassis
• Modified 02-04 ECU (PRB/PND/PPA/PPL) plus adapter harness for 05-06 compatibility
• USB connection for tuning and fast datalog pulls
• KManager Windows software support for tuning, datalogging, and live changes
• Works with common K20 and K24 swap combos when your setup supports it
• Onboard 8MB datalogging, about 10 to 215 minutes depending on channels and rate
• Configurable for larger injectors and aftermarket MAP sensors
• Safety strategies for lean conditions, low fuel pressure, and overboost
• Launch control and anti lag functions if you actually use them
• Bluetooth support and Hondata Mobile App integration
• Flex fuel capability through an ethanol sensor input
• Expanded fuel and ignition mapping up to 60 PSI boost and 11,000 RPM

Option 1: Send in Your Own Compatible ECU

Pick this if you already have a compatible ECU and you want Hondata modification RSX ECU service done to your unit. Select “I Will Send in My Core ECU” at checkout. After purchase, you’ll get the form and shipping instructions. This option usually makes sense if you know your ECU is healthy and you don’t want to pay for a supplied unit.

Option 2: Hybrid Racing-Supplied PND ECU

This option gets you a used OEM PND base model ECU that Hybrid Racing sources, tests, and verifies, then it gets converted for KPro. It’s the easiest way to get a purchase KPro ECU RSX setup going without sending your own core. Trade off, PND base model ECUs do not keep reverse lockout functionality. If that bothers you, skip this one.

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

The PRB Type S ECU option costs more for a reason. It keeps full feature access, including reverse lockout retention, and it’s the go to for most RSX Type-S KPro order customers who want fewer compromises. Hybrid Racing sources, tests, and verifies the PRB units before the KPro conversion, so you’re not rolling the dice on a random junkyard computer. If you want a clean Hondata KPro RSX purchase with the least drama, this is it.

Compatibility:

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

If you’re shopping an Hondata RSX ECU sale because you want real tuning control, this is the straightforward answer. RSX V4 KPro tuning lets you change the calibration as your setup changes, then back it up with logs instead of hope. It’s the ECU upgrade that keeps making sense as you go from bolt ons to cams to boost.

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 can act up at higher speeds due to speed sensor differences. For off-road or racing use only. Not legal for highway use in the United States.

SKUs and Core Options:
SKU: HON-KPRO0506 | Core Provided: I Will Send in My Core ECU
SKU: HON-KPRO0506-PND | Core Provided: HR Will Supply PND ECU
SKU: HON-KPRO0506WITHECUA | Core Provided: HR Will Supply PRB ECU
Options Summary: Core Provided: HR Will Supply PRB ECU, I Will Send in My Core ECU, HR Will Supply PND ECU