These brand new OSRAM Xenarc CBB D3S HID bulbs are easily the best D3S bulbs to ever hit the market, it's no wonder automakers such as Mercedes and BMW are starting to spec the D3S CBB in their flagship models. In a recent comparison test, the Osram Cool Blue Boost bested the CBH, CBI, and standard by a solid margin.
OSRAM XENARC 66340 CBB HID D3S Bulbs – K5 Optima Store
OSRAM Xenarc Cool Blue Boost D3S Xenon Car Headlight Bulbs (Twin) 66340CBB-HCB : Automotive
D3S Osram HID Standard OEM 4300K 66340 Bulb (PACK OF 2) Direct factory OEM Replacement bulb for D3S application (fully compatible with ' D3S' type)
D3S: Osram Xenarc 4300K Standard HID OEM Bulb 66340 (Pack of 1)
OSRAM XENARC D3S HID Xenon Headlight bulbs 66340 Pack of 2 by ALI : Automotive
OSRAM XENARC 66340 CBB HID D3S Bulbs – K5 Optima Store
OSRAM XENARC 66140 CBI HID D1S Bulbs – K5 Optima Store
OSRAM D3S 6000K Cool Blue Advance Xenarc 35W 66340CBA Germany HID Xenon Bulbs by ALI - Pack of 2 : Automotive
D3S: Osram Xenarc 66340 Next Gen 6200K HID Bulb CBN
Kia Optima Product Collection – K5 Optima Store
OSRAM XENARC 66140 CBI HID D1S Bulbs – K5 Optima Store
Vendor - 2016-2020 Kia Optima OSRAM XENARC 66340 CBB D3S HID Bulbs - K5 Optima Store
OSRAM XENARC 66140 CBI HID D1S Bulbs – K5 Optima Store