they'll fit, but they won't lower it. Like was said earlier, the difference in wieght causes the springs not to compress as much as they would in an m3, resulting in no lowering and possibly raising of the car.
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>