But to the original post, forget boost. Ditch the AWD and LS swap the sucker. You'll need a diff from a V8, but that's easy. Torsen limited slip will be required for hookup. Truck LS motors with the tall intakes will fit in the X5 bay.


Then bag it and ride low.

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'04 X5 3.0 5AT with 300,000+km - Black
'08 535xi 6AT with 290,000+km - Titanium Silver