Front sway is temping. Too bad the rear won't fit a 325ci.
I think it would upset the balance with too much understeer

Maybe I'll bend the M3 swaybar to fit? lol
Would be a nice upgrade if it did fit.
1999/2000 Standard......Frt 21.5mm...Rr 15mm
1999/2000 Sport...........Frt 24mm......Rr 19mm
2001+ Sport................Frt 23.5mm...Rr 18mm
2001+ Standard...........Frt 23mm......Rr 18mm
Convertible..................Frt 23.5mm...Rr 20mm
M3.............................Frt 26mm......Rr 21.5mm
M3 CSL ......................Frt 30.8mm...Rr 22.5mm