Do I need to paint each piece separately before installation?

You can paint before or after installation—both methods work. Painting off the car gives you cleaner lines and easier masking. If you install first, mask carefully around body lines and use proper prep between pieces to avoid seam shadows.

Can I install this myself or do I need a professional?

Most builders handle this themselves with basic hand tools and a helper. You'll need fasteners, sealant, and trim panels to match your original setup. Check jack point access before final mounting—side skirts should not block emergency lifting points.

What should I use to prep the FRP before painting?

Sand the surface thoroughly and wipe clean of all dust. FRP takes standard automotive primers and top coats well. Use your chosen paint system's recommended surface prep—no special FRP primer needed if you're already starting from raw FRP condition.