Mercedes C63 AMG Big Fin Carbon Fiber DiffuserIf you're looking for the most aggressive rear diffuser for your Mercedes C63 AMG or C250 C350 Sport then you have found it with this carbon fiber big fin diffuser from rwcarbon. com. This rear diffuser fits both the Mercedes 2012+ C63 AMG and C250 C350 with the sport AMG rear bumper. This Mercedes 2012 2014 C63 C250 C350 Carbon Fiber Diffuser features aggressive carbon fiber construction that's finished with a clear coat to ensure it maintains its'