Will the carbon fiber pattern fade or yellow in the sun?

Carbon fiber pattern visors are UV-resistant, but like any exposed trim, they benefit from occasional cleaning and protection. If your visors start to dull over time, a UV-protective trim coating will restore the finish and prevent further degradation.

Do these mount at factory locations, or will I need to drill holes?

Mounting method is not specified in the product data — test-fit the visors on your vehicle first to confirm whether they use factory adhesive channels, existing clips, or require new fastening points before permanently installing.

Is the finish sealed, or do I need to apply a clear coat?

The carbon fiber pattern comes pre-finished and does not require additional paint or clear coat. The finish is ready to install as-is, though a UV-protective trim sealant can extend the life of the pattern if you want extra durability.