B&G Springs would lower sport suspension 1.25" all around, or 1.6"F/1"R for non-sport on I6 E39. They only show non-sport 540i in their application so I'm not sure about sport 540i.
01 //M5 (soon to be For Sale)
2000 Dinan S1 //M5 (my DD) 06 DINAN E53 4.8iS (wife's DD), 90 Straman Z32TT (my pride & joy ride)[/B]
Gone, but not forgotten: 01 E53 3.0i, 01 525i Sport, 03 DINAN 540i MSport and 91 Z32TwinTurbo
Last edited by tmvE39/E53/Z32; 01-17-2013 at 08:49 AM.