You've decided on the very best intake system on the market for your 2008-2015 Mitsubishi Lancer Evolution X by purchasing the Injen EVO1801 system, but now you have concerns about the ram air scoop during heavy rainfall. Well my friend, fear no more. Injen has developed this rain shield to help prevent rain water from directly entering your intake system under normal driving situations. Please note that this rain guard does not make your vehicle a submarine, so please use caution when driving in rainy situations. This EVO1800RG air intake rain guard is designed specifically for use with the Injen intake system Part No. EVO1801. Our rain guard is designed to deliver trouble free and consistent performance. Made from high-quality materials for ultimate durability. Manufactured in the USA and engineered to meet or exceed strict quality requirements. IMPORTANT NOTICE; The EVO1800RG is an accessory that requires our EVO1801 cold air intake system to function properly. The EVO1801 was designed specifically for the 2008-2015 Mitsubishi Lancer Evolution X.