If you are looking for a quick and easy way to give your C4 better headlight output without compromising the period-correct style, look no further! These Morimoto headlight assemblies offer a direct replacement, plug & play upgrade that is sure to not only look amazing but also double the OEM headlights output (and also provide better optics for more ideal light distribution down the road)! The headlights have a low beam and high beam functionality (fully plug and play to your factory connectors).