These D4S pair of bulbs are a direct plug n play replacement to the OEM factory equipped D4S bulbs.
HID Bulb Cross Reference Guide:
Also Fits: D4S
Availability: Ships within 1-2 business days
Warranty: We stand behind our product 100%! All of our kits are fully covered by a 12 month warranty. If you have a part that needs replacement under warranty please let us know through the contact us page