00-02 Audi S4 D2S (W/ Stock HID) Headlight Light Bulbs Diamond White 6000K One Brand New PAIR (Set of 2) of D2C D2R D2S Xenon Diamond White HID Replacement Light Bulbs (6000K) (35W) This light bulbs will only fit vehicle with stock HID low beam headlamps. Please check with your vehicle's owner manual if you are not sure. 5 Times Longer Life Span than Conventional Light Bulbs. Life-Expectancy: 10000 hours Direct upgrade replacement of OEM HID Light Bulbs. Easy Installation (Just plug in and replace stock light bulbs) No Need to Change Any Wire!! No Modification needed!! Vehicle Application: Audi 2000 2001 2002 S4 With Stock HID headlamps models only