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Originally Posted by sam48is
I thought it had to do with stricter emission standards in the US which lower horsepower by a bit. Guess you learn something new every day.
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While not true for the M54 engine in the X5, that can be true as well if the difference is more than the SAE/Metric hp difference. A good example is the early M3 which was detuned for the US, or the new X5 diesel which has a different engine management program because of emissions requirements and the new urea injection system.
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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