Subaru Genuine Exhaust Gas Recirculation (EGR) ValveThis is a genuine OEM Subaru EGR valve. A Valve used to Recirculate Small amounts of Exhaust into the Combustion chambers of the Engine in Order to decrease the Combustion Temperature. thereby Reducing the formation of Smog. producing Nitrogen oxides. A failed EGR valve will often have no noticeable symptoms beyond a check engine light, but it does cause your 2020 Subaru Forester to operate inefficiently and produce higher emissions. Our technicians