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One question would be for BMW: why does the M2 need to resort to such hardware changes from a tuning house for horsepower increase whereas the M240i 's B58 almost has the same horsepower and superior torque as the M2's N55, and has more tuning potential without the hardware upgrade...
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 1981 323i, 143 Kashmir-Metallic, 0094 Pergament, Sports M5, LSD. |