Oh wow, amazing to get that kind of info.
My RS-Aizawa car revved to 8200 on the original tune (HKS piggy-back ECU) but I swapped that ecu out for a more modern one, tuner set the new limit to 8000.
Do you have any dyno charts for your car ? it'd be interesting to compare! Although not much to compare given supercharging B-spec Type 3 :D :-)
https://trull.org/alex/media/pics/ca...224-oldecu.jpg
https://trull.org/alex/media/pics/ca...0mmspacers.jpg
Interesting to see cars go back and forth between Mazdaspeed and RSA...
Amusingly I saw a photo of the Mazdaspeed C-spec manifold, and it looks like they did exactly what I have from RSA, the 4AGE AE101 silvertop intake manifold. I have to question whether RSA developed it for them, or copied that.