Hondata KPro V4 for 02-04 K-Series Engine (HD Will Supply Auto Core ECU for K-Swaps Only (PND Aut))

Hondata KPro V4 ECU System — K-Series Swaps and Tuning for Your Installations

The Hondata KPro V4 represents a fully programmable ECU solution designed for 2002–2004 Acura RSX (Base & Type S), 2002–2005 Honda Civic Si, and 2002–2004 Honda CR-V (Manual) factory ECUs. It serves as the tuning platform for K-series engines, delivering flexible fuel and ignition control, data logging, and advanced control features within a modified factory ECU. For your installs that involve turbocharged K-series builds or high-compression all-motor setups, KPro V4 provides the tools to execute precise calibrations.

The KPro V4 mounts inside the stock K-Series ECU and connects to a Windows laptop via USB. Using KManager software, your installs can edit fuel and ignition maps, adjust cam angles, enable launch control, and perform real-time tuning. It is one of the few systems that enables immobilizer disabling, making it essential for K-Series engine swaps.

PRB ECU cores are available. A PRB core enables nitrous and boost control within Hondata. Core availability is limited to stock on hand; if a configuration shows as unavailable, please contact us to arrange purchasing.

Core ECU Options and Requirements

Available configurations (Core ECU required as noted):

• HON-KPRO — Core ECU Required: I Will Send in My Core ECU
• HON-KPRO-WITHECUA — Core ECU Required: HR Will Supply Premium Core ECU (PRB)
• HON-KPRO-WITHECUB — Core ECU Required: HR Will Supply Budget Core ECU (PPA, PND, PNF)
• HON-KPRO-WITHECUC — Core ECU Required: HR Will Supply Auto Core ECU for K-Swaps Only (PND Aut)

Options Summary (Core ECU required): I Will Send in My Core ECU; HD Will Supply Auto Core ECU for K-Swaps Only (PND Aut); HD Will Supply Budget Core ECU (PPA, PND, PNF); HD Will Supply Premium Core ECU (PRB).

Why KPro Is Standard for K Swaps

For nearly two decades, KPro has been a trusted tuning solution for Honda/Acura K-Series swaps. Its reliability, straightforward interface, and deep feature set support a range of swap and tuning goals—from simple K20 swaps to optimized street or race configurations. The system provides comprehensive control and data access essential for precise calibration on both turbocharged and all-motor builds.

KPro V4 Features

• Fits inside factory ECU
• Designed and assembled in the USA
• USB connection for fast tuning and datalogging
• 8MB onboard datalogging (10–215 minutes)
• Live tuning and auto-tune capabilities
• Bluetooth support and Hondata Mobile app
• Built-in calibrations for common engine combos
• Launch control with anti-lag
• Expanded ignition and fuel tables (up to 11,000 rpm, 60 psi boost)
• Injector size and fuel trim adjustments
• Supports stock or aftermarket wideband sensors
• PWM boost control output
• Engine protection: lean AFR, overboost, low oil/fuel pressure
• Ethanol content sensor (Flex Fuel) support
• TPS-based map lookup for ITBs
• Alternate speed sensor input
• Dash output via serial and CAN

KManager Software Capabilities

• High/low speed 16x20 ignition and fuel tables
• Multi-cam angle tuning for VTEC/VTC
• Rev limiter with fuel cut
• Adjustable VTEC engagement by load and throttle
• Idle speed, air temp, and boost cut adjustments
• Gear-based fuel/ignition trim
• Multiple general-purpose outputs (nitrous, boost, etc.)
• Onboard datalogging trigger conditions

Fitment

• 2002–2004 Acura RSX (Base & Type S)
• 2002–2005 Honda Civic Si
• 2002–2004 Honda CR-V (Manual Transmission)

Important Notes

• Requires a compatible Honda/Acura ECU (PRB, PND, PNF, PRA, PRC, PRD, PPA, PPL)
• ECU core availability may delay fulfillment by 6–8 weeks
• Off-road/racing use only – not legal for use on public roads in the USA

To complement your Hondata KPro V4 system, a range of accessories supports installation and functionality. Popular add-ons include ECU covers for secure mounting, traction control modules for additional grip on track or street, and upgraded MAP sensors to support higher boost levels. These accessories allow you to tailor a KPro setup to a specific build and performance goal for your shoppers.

All Hondata KPro sales are final once the product is received. Because tuning devices and licensing are involved, returns are not accepted for used or potentially used KPro units. Confirm compatibility and usage prior to ordering, and contact us with any questions before placing an order.

When precision tuning and complete control over a K-series build are the goals, the Hondata KPro V4 delivers race-proven technology and extensive features. Trusted by tuners, racers, and engine swappers around the world, KPro remains a standard option for Honda performance tuning.