If you are in the market for an aggressive look and don't want to break the bank, this is it. Rear diffuser fins designed specifically for the 2013-2018 Ford Focus ST MK3.

These fins are engineered for perfect contour match to your bumper, they are designed to hook on to your bumper and fasten with automotive 3M tape. The fins feature multi-contour mating surfaces, which means they will fit snug against the bumper with no gap, for an OEM look.

The downloadable instructions manual coupled with the numbered fins ensures a smooth installation.

Pair these with our Wing Lift kit and get your rear end to really stand out.

Don't forget to run through our gallery to get some ideas, the color options will REALLY pique your interest.

2013-2014 Installation Guide

2015-2018 Installation Guide