RCK3 doesn't care what system you have.
All you need to do is to unlock ECU (and loosing the warranty) via a dealer or enthusiasts on internet.
You would need to buy a hardware interface and download a free software from BMW.
If you are just for adjusting fuel map, it's 2-3 times cheaper to do this via PCV than RCK3. But obviously RCK3 gives you more options to play with: DTC, ABS, Engine braking and etc.
RCK3 / HP power kit encoding are no longer available from a North American BMW dealer. The coding must be correctly installed or the codes are merely inserted to the ECU does not activate the maps and tables in the 4MEG side. There are people that attempt to copy my work with chinese clone BDM devices, but this does not create the correct coding process of the RCK3 / HP Power codes.
BMW sold the RCK3 and HP power kit codes separately up until Feb 2017. It was found even by BMWAG that installing either RCK3 or HP power kit coding by themselves was creating some bad coding effects within the BMSMP ECU. A PUMA was issued to all dealers that these codes were no longer to be sold separately.
Then in mid 2018 it is reported to me that the US government asked BMWAG to reduce it carbon footprint in North America in its overall fleet known as CAFE . https://en.wikipedia.org/wiki/Corpor...e_fuel_economy
As of July 2018 HP power kit and RCK3 are no longer available at the BMW dealers. I am not sure how it impacts other parts of the world on this decision to stop RCK3 and HP power kit enables.
I do the enables the correct install process as it would be done by the BMW dealers. This provides 100% assurance you are getting the full use of the ECU coding as it was designed for racing applications.
I stock the VCI MDI interface cable box as well.
I have 5 BMSX, BMSMP setups which includes the ECU, EWS4 / Ignition switch, 2 keys , Cluster ready to install race / street ready with the RCK3/HP power kited encoding.
PM if you are interested.