RC51 Link ECU Conversion Kit

RC51 Link ECU Conversion Kit

SP1 & SP2 Compatible | AtomX or MonsoonX Options | Built by AFR Autoworks

Take full control of your RC51.

Whether you’re chasing lap times or refining street manners, the factory ECU on the Honda RC51 just can’t keep up with modern tuning demands. That’s why we developed this complete conversion kit — a plug-and-play harness solution built in-house at AFR Auto Works to bring modern motorsport-grade engine management to your SP1 or SP2.

We include everything you need to bring your RC51 into the modern era — with seamless integration and race-proven results.

✅ What’s Included in the Kit:

• Custom AFR Adapter Harness – Built in-house, prewired for:

  • 2x Link CAN Lambda modules

  • Aftermarket dash display (Link, Aim, MoTeC compatible)

  • Translogic quickshifter (optional add-on)

• Your choice of Link G4X ECU:

  • AtomX – Lightweight, powerful entry-level ECU

  • MonsoonX – Advanced feature set including onboard MAP, knock, VVT & boost control

• 2x Link CAN-Lambda Modules – Fully digital wideband control with Bosch LSU 4.9 sensors

• Universal mounting hardware, tuning cable & documentation

💡 Why Upgrade?

• Ditch the limitations of the stock ECU — no more reflash band-aids or piggyback boxes

• Enable full motorsport control — launch control, closed-loop fueling, quickshifter logic, 

• Remote tuning available — direct support from AFR Autoworks

🧠 Tuning Features & Benefits:

🔍 Why Choose Our Kit?

• 🔧 Proven Track Record: Used on competitively raced RC51s

• 🧰 Diagnostic Power: Coil & injector test functions, sensor fault detection, advanced math channels

• ⚙️ Real Performance Gains:

  • +11whp gain seen on our SP1 with improved throttle response and no more 5k rpm torque dip!
    

  • Far smoother drivability and real-time tuning precision

• 🛠 Plug & Play Simplicity: Custom harness eliminates guesswork — no hacking factory wiring

• 🔄 Future-Ready: Prewired for aftermarket dash, CAN expansions, and more

🏁 Built by Riders, for Riders.

This is the same setup we run on our personal RC51 and offer to competitive racers. We’ve already built and installed five of these systems (4x RC51, 1x MV Agusta F4S (custom wire)) — each tested, refined, and supported by AFR Autoworks in Red Deer, Alberta.

Your RC51 deserves more than a 20-year-old ECU. Whether you're riding SP1 or SP2 — this is your path to modern power, precision, and reliability.

🔗 Available Now at afrautoworksstore.com

Still have questions?
Contact us at sales@afrautoworks.com — we’ll get you dialed.

*Built for Race Use Only. Some functionality of the kickstand kill are lost in installation of this kit.

*Will come pre-programmed with a base map for your specific bike. Must confirm SP-1, SP-2, coil type, dash display, and modifications to bike e.g. exhaust, quickshifter, etc... Base map is to get you up and running. Tuning will be required after that.

*Wideband Air Fuels are REQUIRED for tuning. The BEST OPTION is the 2x CAN LAMBDA which will allow for both short and long term fuel trims, individual cylinder lambda control, and tuning each cylinder individually. If you are not going to run the CAN-Lambda x 2 then you should be running other air fuel guages (perhaps on the dyno) and should monitor both cylinders. The front and rear cylinders typically run WILDLY different on the RC51 and NEED INDIVIDUAL CYLINDER TUNING for proper results.