1Replacement for E92 / E93 M3 Coupe / Convertible, to accurately position your needs. 2Aggressive shark fins aerodynamic design with twindual (quad) exhaust outlets, will provide much aero effect and down force, reduces drag, increases fuel efficiency, reinforces traction and stability. 33K glossy carbon fiber with applied 1mm/0.04in thick of epoxy coating, have extra protection from oxidation, has high heat tolerance. 4Using advanced hotpressing tank forming technology, durable, UVresistant, anticorrosion and antifouling. 5Made of highquality dry carbon fiber, hard, carbon fiber is built symmetrically and evenly, corrosionresistant, and can be used for a long time.