andrea:
for me Manthey is The Tuner,n°1 for Porsche

I would be happy with either Ruf, Cargraphic or Manthey Smiley

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MY2008 997 Turbo - Cargraphic stage II powerkit (544PS/798Nm) | HRE P40's | Bilstein Damptronics | GMC Sway/Toe-steer/Dog-bone kits