Quote:

Originally Posted by Stealth.Pilot I think there could be one of 2 explanations: 1) the 550i engine is identical but detuned. 2) the 550i does not have twin scroll turbo chargers.

Is your M5 here yet?

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2011 BMW X5 xDrive 35d Vermillion Red Metallic/Black Nevada Leather
Options: ZCW, ZPP, ZRC, ZTP, 300, 386, 496, 4AB, 6FL, Combox, LED Coronas. 04/11 Production