Will this diffuser clear my exhaust tips when I go over inclines or dips?

The diffuser sits at the lower rear bumper area where factory body lines already establish ground clearance. Verify your vehicle's approach and departure angles before final installation. If you've lowered your suspension, test clearance with a jack before bolting down permanently.

Is this diffuser purely cosmetic, or does it have functional aerodynamic benefits?

The AXS design follows body lines for visual continuity. Whether it generates measurable downforce depends on speed and vehicle setup — this is best treated as a styling element. If you're seeking actual aero performance data, compare test results from track-focused vendors separately.

What finish should I apply to the carbon fiber once it arrives?

Sand and prep the surface using standard automotive surface prep methods, then apply your chosen clear coat or finish. Real carbon fiber benefits from UV-protective clear coat to preserve the weave and prevent oxidation. Consult your paint supplier for product compatibility with carbon fiber substrates.