Does this require drilling or modification to the bumper?

No. This splitter uses the factory mounting points on your front bumper, so no drilling or permanent modifications are needed. Verify that your bumper's attachment holes align with the splitter's mounting pattern before final installation.

What prep and finish should I use on the surface?

Sand the surface and apply your chosen primer and paint system. Most builders use standard automotive primers and topcoats. The FRP is ready to accept preparation work out of the box — no stripping or additional surface treatment is required first.

Will this interfere with ground clearance or speed bumps?

The splitter adds a lower edge to your front end. Check your typical driving surfaces and driveway angles before installation. If you frequently encounter steep driveways or unpaved terrain, measure the splitter's extension against your ground clearance tolerance.