Do these fenders require any modification to the factory fender wells?

Over-fenders bolt over your existing panels — no cutting or welding needed. Check your vehicle's factory bolt hole pattern before installation to confirm alignment with the mounting locations on these panels.

What prep work should I do before painting?

Sand the surface with standard automotive prep technique and apply your chosen primer and paint system. The FRP base is ready for finishing once clean and lightly scuffed.

Can these panels be repaired if they crack?

FRP damage can be addressed with fiberglass repair patches and resin kits available at automotive supply stores. Minor cracks and stress points are easily maintainable — the material is designed to absorb impact without shattering like steel.