Quote:
Originally Posted by ptper
Now, that's what I'm talking about! Love the fact that one can start the car with closed valves in Efficiency. Another great selling point. I'm thinking it's better to keep cold start as that's how BMW wants to warm up the engine. Guess there's no need for a valve controller anymore. lol.
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If you have cats in place yes, the only reason BMW does this is to Pre heat cat's Quickly as this is when the most efficient when they hot
it does this with the the aid of opening the wastgates when you start it.