Do these fenders cover my wheel wells completely if I run stock wheel width?

Over-fenders are designed for wider wheels and lowered suspensions. With stock wheel sizing, you'll have gap between the tire and inner fender edge. Verify your planned wheel width and offset against the 3-inch additional fender width to confirm fitment for your setup.

What prep is needed before painting?

Sand and prep the surface before applying your chosen finish. Follow your paint supplier's surface preparation guidelines for FRP — most recommend a light scuff and final cleaning before base coat application.

Are factory mounting holes pre-drilled, or do I need to locate and drill my own?

This set ships unpre-drilled. Reference your vehicle's OEM bumper and fender hole locations to mark mounting points on the new panels before drilling. This allows you to align them perfectly with your specific vehicle's fastener positions.