Will this scrape on speed bumps or inclines with my stock suspension?

The Novarix profile is designed for a subtle extension that sits well on unmodified geometry. Check your vehicle's current ground clearance at the rear bumper corner and compare against your typical driveway or parking lot approach angle. If you've lowered your suspension, verify clearance before final installation.

Is this functional downforce or purely cosmetic?

This diffuser delivers both. The Novarix design generates measurable rear-end stability at highway speeds while improving the visual aggression of the rear quarter. You'll feel the handling benefit on the track; the look works on the street.

What finish should I apply to bare carbon?

Sand and prep the surface thoroughly, then apply a UV-protective clear coat or your chosen paint system. Clear coat alone preserves the carbon weave while defending against UV fade and environmental contamination. A professional shop finish ensures longevity and a clean final appearance.