Nice! Did you install the single prong iridium plugs? I used NGK coils on mine. After swapping those parts, when I fill up, the range gauge broke the 500 mile mark. The latest 334 miles went 24 MPG by Consumr1 readings. Speeds were 75-80 MPH the entire way.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)