Will this trim work if my bumper has lower valance damage?

This molding covers the upper front bumper trim only. If your valance or lower bumper section is damaged, that's a separate component you may need to address independently.

Do I need to prep this before installing?

Inspect the molding and bumper mounting points before installation. Clean contact areas to ensure proper clip engagement. Test-fit first to confirm alignment with your existing bumper.

Does this come with fasteners?

The trim uses factory E46 clip points for mounting. Confirm your existing bumper has intact clips before installing — additional fasteners may be needed if clips are broken.