8ATs are used in the M235i-R race cars. With that said, I would be cautious about adding any additional power as I do not believe the ZF 8AT in the 228i is of the same torque rating as the M235's 8AT. If I was racing an 8AT as often as you plan, I would make sure to be changing the transmission fluid every couple of years.
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The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
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