Will this front lip scrape over speed bumps or driveways after install?

Ground clearance depends on how far the lip extends below the bumper line and your current ride height. Before installation, mock-fit the lip or reference photos of the same model to verify clearance matches your driving style. Most owners lower clearance by 1–2 inches and adjust driving approach accordingly — avoid steep entries and driveways at angles.

Does FRP flex under pressure, or is it rigid like the OEM bumper?

FRP is semi-rigid — it absorbs minor impacts better than brittle plastic but stays firm enough to hold its RBS profile without sagging. This makes it more forgiving in parking lot contact than hard composites, though it's not designed for repeated abuse. Treat it like any aftermarket plastic component and avoid direct impact.

What fastening method should I use to attach this to the factory bumper?

The lip is engineered for factory mounting points, which typically use self-tapping screws or OEM hardware already in place on your bumper. Verify your bumper's existing fastener locations before drilling. Use stainless hardware to prevent rust, especially if you're in a wet climate — FRP itself won't corrode, but metal fasteners will.