I sold mine on kijiji for 140 no problem. had a line up wanting it. I wouldn't pay more than 150 for one..although the forum sponsors who part cars out will probably want 200 at least.
There are quieter afermarket ones out there..the M3 one is a boat anchor it's so heavy.
03 AW on LSB M3 coupe, BMW motorsport 4.10 Diff, AA Exhaust, OEM CSL rims, Aero Res, TMS subframe, powerflex bshgs, Macht Schnell, Vorsteiner diffuser, TMS steel lines etc..
Complete Comp Pkg Upgrade
98 328is hamann HM2,3.23 diff, ZKW headlights, HID fogs, M3 front, sides, rear and mirrors.UUC rsc36 exhaust, fk coilovers, X brace,UUC tran mounts. Spal fan, Mishimoto rad, AKG rtab, Pweflex CAB. Rogue RSM,SS clutch line, m3 subframe plates, pf bushs
09 F250, 2012 Honda CRV winterbeater