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      03-02-2006, 09:50 AM   #3
chazmtb
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Drives: 2011 X5D
Join Date: May 2005
Location: Windermere, FL

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You probably got the dreaded E engine instead of I engine. The E engine doesn't rev, but has loads of torque down low. I know the I engine revs up to 6500. There are performance chips for the E engine that bumps up the rev, but not by much.