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I have personally never tuned, nor have any interest in modifying my stock vehicles from the engine perspective. But just for purpose of discussion (and my lack of knowledge) how would an Alpina tuned vehicle differ from many of these? I assumed they have all new ECU's created (and various other internals ie.. intercoolers/fuel pumps etc...) but I was just curious.
Reviews of the B3 for example, reflect they certainly do something right.
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