All Direnza air induction systems are designed in-house by Direnza engineers. Designed to replace the OEM ST170's airbox, offering more surface area compared to the standard filter and significantly enhancing air flow into the Duratec engine boosting your car's soundtrack and performance. ---Supplied with heat-resistant silicone hoses ---Crinkle wrapped heat shield ---Supplied with a high quality cone filter ---Powder coated alloy pipework Fitment Ford Focus MK1 ST170 2.0 1998-2004 models.