Hamann unveils its completely revamped BMW Z4 M coupe. Upgrades include a reflashed ECU — increasing output to 358hp — custom exhaust system, multi-part wheels, and a body kit. Lots more pics after the jump.

Reprogramming the standard engine management system produces an extra 15 bhp (11 kW). Torque rises by 20 Nm. Reprogramming also includes circumvention of the Vmax limit and, after being thus tweaked, the HAMANN Z4 M Coupé reaches 275 km/h

[via LeftlaneNewsAutomotoportal]

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