I kept the springs, but my wife is complaining and it does ride pretty rough still so I might look into eibach springs...it would kill me to go back to stock because it looks so good as it is. I have 25mm spacers coming for the rears I got the DRA series that bolts to the hub then OEM bolts are used to bolt the wheel to the spacer I have had them before on other cars and liked them.

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X5M Eisenmann exhaust, de-Catted down pipes, 22" HRE wheels, ECUProgram stage II (700hp) tune
X5 35d Tuned and Lowered