Quick view Roush ROUSH 2010-2014 Ford Mustang Unpainted Side Splitter Kit - 420092 Compare $274.99 Mustang Side Splitters from ROUSH Add true race-inspired styling to your 2010-2014 Mustang with ROUSH's Side Splitter kit. This kit includes splitters for both the left and right sides of your vehicle. Each splitter fits underneath the stock rocker... Add to Cart Add to Cart