Front:

Top of arch to top of wheel: 6 (6.00")

Rear:

Top of arch to top of wheel: 6 1/4 (6.25")

I could not find my tape measure, so I did it with a regular metal 1 foot ruler. So apparently mine is a 1 3/4 drop in rear? H&R claims a 1.2 inch drop in front, but considering that they have some age and mileage on them, if it's a bit more I would not be surprised. Rear lowering was done via a BMW tech's computer and the previous owner yelling out STOP when he hit the desired height. All I know is that it looks good.