This Duraflex MTS rear diffuser is a must - have for Subaru Impreza WRX STI 4DR owners from 2002 to 2007. It's perfect for those who want to enhance their car's appearance and performance, whether you're a daily driver or a car enthusiast. In terms of technical details, it's made of FRP which is lightweight. The 3 - piece design makes it easy to install. This diffuser is suitable for any driving scenario, adding a sporty look to your car on the streets or at the track.