Do I need to splice into existing wiring or can I tap into the factory harness?

The switch connects to your vehicle's harness—exact routing depends on your electrical setup. Run the harness along the driver's side inner fender and route through the firewall. No factory splice points are confirmed, so plan on manual routing and securing with clips.

What if one of the H11 bulbs burns out after I install them?

H11 bulbs are a standard size and widely available at any auto parts store. They're inexpensive and swap in seconds, so keep a spare on hand.

Do these lights require any sealant or adhesive where they meet the bumper?

The housings are designed for factory-style bolt mounting. Seal around the perimeter with weatherstrip adhesive or silicone sealant to keep moisture out of the engine bay.