Ford Focus RS Fuel Filter Kit by Radium Engineering Lower the stress of your Ford Focus RS fuel pump and the restrictive nature of the stock fuel filter with Radium Engineering's high performance 10 Micron Stainless Fuel Filter. This filter is designed to work with a wide variety of fuels such as Gasoline, Diesel, E85, Ethanol and Methanol. The great thing about the Radium Engineering Fuel Filter is that it is reusable and just needs to be occasionally cleaned. This kit installs in minutes and requires no cutting or drilling.The Radium filter is less restrictive than the OEM Ford filter reducing overall fuel pump pressure by (3-5.5 psi) This in turn draws less current lowering fuel temperature and allows for an increase in fuel flow.Radium Engineering Ford Focus RS Fuel Filter Kit Features:Excellent filtration Superior compatibility with all fuels Requires occasional cleaning for optimal flow Lowers fuel pump pressure by 3-5.5psi Features a 10 Micron Stainless fuel Filter for optimal performance