A friend of mine found a set of KW V3s online for his E61. $2,200 plus $600 labor. Car is TRANSFORMED! No comparison.
Audio: Jehnert Flatline speakers, Mobridge M1000 DA2 prepro, Helix P-DSP, Zapco Z-150.6 amp
Performance: Custom Cobb ECU flash, AR Downpipes, ER FMIC/CP, DCI, RB turbos, KW V2 coilovers, Walbro 455 LPFP, Ported fuel rail