Do these fenders work as a standalone purchase?

No. These over fenders are engineered as part of a complete wide body kit system. You'll need the full kit installed for proper panel alignment, gap consistency, and the intended aggressive stance.

What surface prep is required before painting?

Sand the raw FRP panels with appropriate grit to scuff the surface, then wipe clean of dust. Your chosen primer and paint system will bond best to a prepped, clean FRP surface. Refer to your paint supplier's prep guidelines for the specific products you're using.

Will these panels work with my existing bumper and hood?

These are over fenders that extend outward from the original panel. Verify your front bumper and hood clearance against the new panel extension before installation. Some wide body kits include coordinated bumper sections; confirm your full kit's component compatibility.