E46 quad projector project cost breakdown as below
E46 bi-xenon projector set – RM464
FX-R projectors – RM382
HID D2S ballast + bulb – RM151
E46 replica shroud – RM89
Yellow Philips H7 bulbs – RM76
Paints – RM70
Relays etc – RM60
D2S harness – RM27
