Sorry, they have been sold since last year. For your car the lowering would be: 1.3" front, 0.9" rear (Tein Part# SKG72-AUB00). The ones I sold on my car (Part #SKG68-AUB00) would not fit for yours. Thanks for asking.
2003 M3 DIAMOND-METALLIC INDIVIDUAL
ESS VT2-500+ SUPERCHARGER/MODIFIED B&B EXHAUST/RD SPORT CROSS-FLOW MID-PIPE/GROUND CONTROL COILOVERS/CUSTOM 19" 3PC FORGED WHEELS