My GT-R is now about 5 years old. While I have not been driving it at night as much, I recently did and the lights seemed dim. Also, compared to the LED headlight on out new
Infiniti Q50, the
retrofit job of HID I did on my Frontier Pro 4-X, the GT-R simply seemed dimmest and oldest. I am guessing after 5 years of time and usage Xenon HID bulbs do dim. Also, the GT-R lights are more ~4300K and the newer lights are closer to 5000K.
The GT-R uses D2S 35W bulbs. As replacements, I considered 5000K bulbs, Phillips, Sylvania, Morimoto (which are in my truck) but finally settled on
MaxLux based on the Amazon User reviews an the fact that the cost $35 for a pair with Prime shipping. After having Sylvania and Morimoto one's I'd say keep away from them as I have had issues with both of them. The Morimoto ones started flickering after 2 weeks. With Maxlux, at the cost, even if they burn out in 1 year, that is super cheap.
They came and I installed them. So here are the instructions on how to change the HID bulbs on the GT-R.