Will this diffuser clear the exhaust tip at highway speeds, or does it sit too close to the bumper?

The Gran Veloce profile is engineered with standard exhaust clearance in mind. Before installation, verify your exhaust tip position and angle against the vane geometry. If you've modified your exhaust system, test fit or reference your tip's exact exit point relative to the factory mounting holes to confirm alignment.

Does this add downforce or is it mainly visual?

The vaned design of the Gran Veloce style is optimized for aggressive appearance. While FRP diffusers improve rear air flow separation at track speeds, real-world downforce gains depend on ride height, suspension setup, and sustained velocity. Treat this as a functional aesthetic enhancement—the styling is the primary feature.

Will the diffuser scrape on steep driveways or parking lot approaches?

The diffuser extends from the rear bumper line and lowers toward the ground. Check your vehicle's current ride height and approach angles at your most challenging driveways before installation. If you run lowered suspension, measure clearance carefully at the steepest inclines you regularly encounter.