I honestly would just replace the pair, I have a pair of Morimoto 5000k (good quality basically on par with Philips) bulbs from The Retrofit Source in my other car, running strong for 3 years now, and I paid 60 bucks for the pair.


From what I know of the OEM bulbs the 85122+ already is color shifted to match existing headlights, but like I said, you may have the other bulb go sometime down the line. I've always replaced bulbs in pairs. good luck!