So is it or not achievable?
Initially it looked like it wasnt possible to hit 400whp and ~450tq on stock turbo. But with FBO and perhaps a fuel system upgrade to handle the push might be possible? Obviously with a custom tune.
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Garage: 2018 991.2 GT3|2013 135i|2004 M3|2004 X3|1987 325is|1987 325i|1974 2002tii
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