In case anyone was doubting the difference an upgraded turbo setup makes on an N54 here is a video that should change your mind. The camere car belongs to BimmerBoost member Wedge1967 who has been running his mouth just a bit regarding the performance of his stock turbo 335i on E85 with a Vishnu Procede tune. The 335i that pulls away (way away) has RB upgraded twins and a Burger Tuning JB4.

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Wedge1967 claims he was in the wrong gear for this pull being in second instead third gear which is entirely plausible but considering the acceleration of the 335i, it would not have mattered what gear he was in. The upgraded turbo car simply walks away.