Yes, you can flash the car with a CS tune
But if not mistaken the M2 CS uses the same HP as the M3/M4 ZCP and then you have the M3/M4 CS at 460.
I flashed to the CS tune that's based on the M3/M4 and it took it to another level.
Warranty wise, BMW can deny if they see that you have tempered with the car. Don't think it matters if you use CS/GTS or stage 2 map on your engine. It's not what they intended for the M2 comp
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