Rear Diffuser Ford Focus ST Mk 3 Estate Maxton Design UK Street Pro Rear Diffuser Ford Focus Estate ST Mk4 Black Red Our Offer DownForceSolutions 2013 2018 Ford Focus ST V2 rear diffuser Street PRO Rear Diffuser Ford Focus ST Mk 3 Facelift Maxton Design UK Street Pro Rear Diffuser Ford Focus ST Mk4 Black Our Offer \ Ford Rear diffuser V.3 Ford Focus ST Mk4 221,50 races shop.com. Replace your broken or lost Ford Focus ST OG Edition Rear Diffuser and hit the streets again. Enjoy the elegance and sleek style the Rear Diffuser provides, giving your car a stylish upgrade. Be ready to impress with improved performance and aerodynamics. Get back on the road in no time!