The most common materials are ABS Plastic, Polyurethane (PU), and Carbon Fiber. ABS Plastic is the industry standard for its balance of durability and impact resistance, closely mimicking OEM quality. Polyurethane is highly flexible and resistant to cracks, making it ideal for front lips, though it can be prone to warping in extreme heat. Carbon Fiber is the premium choice for weight reduction and high-end aesthetics, but it requires a high-quality UV-resistant clear coat to prevent yellowing over time.