EGR valves reduce emissions and increase engine performance. They lower fuel consumption and contribute to compliance with environmental standards. EGR Valve For Opel For Vivaro 1.6 CDTi. EGR valve controls the amount of exhaust gas recirculated to the intake system and reduces the emission of nitrogen oxides in the exhaust gas. Optimized internal flow channel design reduces exhaust flow resistance and minimizes power loss. Reduces harmful gas emissions in exhaust., Manufacturer: gghhstore