Will these extensions clear my factory trailer hitch or rear sensor?

Verify the exact position of your OEM hitch and any factory parking sensors before final fitment. The BR-N profile sits lower than stock, so measure your current clearance and compare it to your planned mounting height. If sensors are present, you may need to drill mounting holes to align with existing wiring.

What prep work is needed before I paint these?

Sand the surface with standard body shop sandpaper to scuff the finish, then wipe clean of dust. Fill any voids with appropriate filler if needed, and apply your chosen primer or base coat once the surface is prepped. The FRP is ready to accept paint immediately after sanding.

Do I need to modify the rear bumper to install these?

These mount to factory bumper attachment points, so no cutting or major modification is required. However, you may need to drill mounting holes if your specific bumper configuration differs from the standard setup. Test-fit before drilling to confirm hole alignment with your bumper's existing structure.