Will this lip interfere with the front bumper or splitter I already have?

The lip is designed to bolt to the factory lower fascia mounting points. If you're running a splitter or extended front end piece, measure the height of your existing components against the OEM bumper line before ordering to ensure clearance.

What's the best way to prep FRP before painting?

Sand the entire surface with medium-grit paper and wipe down with a tack cloth to remove dust. This ensures primer and paint adhere evenly. The material ships ready for your primer of choice — no special treatment required beyond standard surface prep.

Does stability change at highway speeds with a front lip installed?

A properly installed front lip adds minimal aerodynamic effect at highway speeds. Ensure all mounting fasteners are tight and the panel sits flush with the bumper to maintain balanced airflow and handling characteristics.