Will this bumper work with my factory fog light openings?

The X Sport bumper is designed around the stock fog light cutouts. If your vehicle has OEM fog lights, the openings will align with the existing trim ring and bracket assembly — no drilling required. If upgrading to aftermarket fog housings, verify opening diameter against your new light's bezel before installation.

Does the lower valance fit without gap at the bottom edge?

This bumper is engineered to meet the factory valance edge and splitter height. A tight fitment depends on your bumper support bar being straight and properly mounted. If your car has previous damage or sagging support, the gap will show. Inspect your support structure and mounting points before hanging the bumper.

What surface prep is required before I paint this?

Sand and prep the entire surface before applying your chosen topcoat. The FRP arrives without paint, so any dust, release agent, or handling marks must be removed. Your paint supplier can recommend the right primer and topcoat system for FRP bonding.