Do all four pieces need to be painted separately, or can I paint them as an assembly?

Paint them separately before installation — easier to handle, better edge coverage, and you avoid masking overspray on already-mounted panels. Sand and prep each piece individually, then apply your primer and color coat.

Will I need a seam filler or tape between the bumper cover and side skirts where they meet?

Gaps depend on fitment and your panel alignment — test-fit everything first to see where pieces sit relative to each other. Some builders use flexible epoxy or gap sealant at seams; others rely on paint and clearcoat to bridge tight transitions. Verify your fitment before committing to a sealing method.

Does this kit require drilling or cutting into the existing bumper and body panels?

Mounting method not confirmed — dry-fit the entire kit on your vehicle and verify alignment with factory attachment points before drilling or applying adhesive. Check that all four pieces align with each other and clear door jambs and wheel wells.