Toyota Prius Mugen R Spoiler 2012-2015. Available at megamotorsports.pk. The Toyota Prius Mugen R Spoiler is designed for optimal aerodynamics and improved handling. Made specifically for the 2012-2015 models, this spoiler not only adds a sleek and sporty look to your vehicle, but also increases performance and fuel efficiency. Made with high-quality materials and expert craftsmanship, this spoiler is a must-have for any Prius owner looking to enhance their driving experience.