RFTX is built by BMW enthusiasts for enthusiasts. Our goal is to make high-performance ECU tuning accessible to everyone, without the hefty price tags.
Unlock your BMW’s full potential with RFTX Flasher — free of subscriptions, license keys, or paywalls. Tune your way, at no cost.
RFTX is a community-driven project. Report issues, and we’ll push updates fast to keep the software running smoothly.
Visit our shop! Every clothing purchase helps keep RFTX free and thriving.
Direct Flash: RFTX Flasher can flash N54 ECUs directly via OBD-II with a K+DCAN cable. No bench unlocking required!
Direct Flash: Flash N55 ECUs straight through the OBD-II port using RFTX Flasher. No bench unlocking needed.
Direct Flash: N52 ECUs are fully supported for direct flashing with RFTX Flasher via OBD-II. Plug and play!
Bench Unlock Required: B58 ECUs need a one-time bench unlock ($100–$300 at a tuning shop) before flashing with RFTX Flasher.
Bench Unlock Required: S55 ECUs require a bench unlock before using RFTX Flasher for tuning.
Bench Unlock Required: B48 ECUs must be bench unlocked prior to flashing with RFTX Flasher.
Bench Unlock Required: S58 ECUs need a bench unlock before RFTX Flasher can be used for tuning.
ECU tuning enhances your car’s performance by optimizing its Engine Control Unit (ECU), the computer controlling fuel, air, and ignition timing. RFTX Tuning makes your BMW faster, more responsive, and more thrilling to drive.
Download and install RFTX.TUNING.exe on your Windows PC.
Connect your laptop to your BMW using a K+DCAN cable via the OBD-II port (typically under the dashboard).
Select your tuned .bin file in the RFTX Flasher software.
Click flash to upload the custom tuning map to the ECU. The process takes just a few minutes.
Experience enhanced horsepower, torque, and throttle response. Drive your car like it was meant to be driven!
Use premium fuel, avoid extreme driving conditions, and follow our guidelines to protect your vehicle. Consult a professional if unsure.
Tuning is perfect for track enthusiasts or off-road use. It’s user-friendly, reversible, and transforms your BMW’s performance without hardware changes.
Absolutely! RFTX Flasher is designed with a user-friendly interface. Just follow the step-by-step instructions in the "How ECU Tuning Works" section, and you’ll be tuning in no time.
Yes, RFTX Flasher allows you to flash your ECU back to its original stock map if needed. Always back up your stock ECU file before tuning.
Use a stable power source (e.g., battery charger), a reliable K+DCAN or ENET cable, and avoid interrupting the flashing process. Follow all guidelines and use premium fuel post-tuning.
RFTX is built by enthusiasts like you! Community feedback, bug reports, and suggestions drive updates. Email us or join discussions on BMW tuning forums to get involved.
Tuning boosts horsepower, torque, and throttle response, making your BMW more exciting to drive. It’s ideal for track or off-road use, offering a custom driving experience.
No, once RFTX.TUNING.exe is installed, you can flash your ECU offline. An internet connection is only needed to download the software initially.
Notice: Windows SmartScreen may warn you about RFTX installer because we are a small developer without a corporate certificate yet. Just click 'More Info' > 'Run Anyway' to continue installation safely. RFTX is clean, safe, and open for community use.
Need help? Reach out to us at: rftxtuning@gmail.com