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Hi again! I just wanted to give an update. I have an in-ECU unit but I have also purchased a v1.2 unit to experiment with. Upon doing this, it turns out that this ECU does in fact register as the correct 37820-RBB-A21! It seems the sticker on the outer casing is a revision of some sort perhaps? I am...

KTuner wrote: ↑Thu Aug 10, 2023 3:03 pm You can flash between AT and MT codebases. The In-ECU kit has worked for CL7/CL9 if drive by wire, but we don't directly support them.

Thank you for the info, I will speak to my tuner about which will be the best option as he has experience using KTuner with these cars

You will not be able to tune an ECU that does not have 37820 even if the software matches the RBB-A21. That vehicle has been out for 17 years and this is the first time I've heard of this ECU being available. I can't justify changing the way the unit firmwares and KTuner software work for just one ...

We do not support that and have never seen an ECU that doesn't start with 37820. Unfortunately I was logged out of my account & password reset emails are not coming through so I had to make another. I agree it is strange that the ECU begins with 37010 however in all other aspects it appears to ...