You want TC Kline's with height adjusters - http://store.bimmerworld.com/shared/...t=products. asp
"Whether your looking to dial in your ride height for that perfect look or corner balance your car for ideal cross weights, this system's adjustable perch assembly give you the ability to get the car exactly the way you want it. Ride height can be adjusted from .5" to 2.5" below stock height...



