Is Dinan a hypocrite? Piggyback 'Turbotronics' S63TU V8 tuning coming from Dinan for the F10/F12/F13 M5 and M6

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Good call. Sounds about right. They have really slipped...prime example of coasting on reputation.

I'm amazed how much people love name brands. It has to be how Hamann and AC Schnitzer survive because their tuning is W E A K.