A-Premium Secondary Air Injection Check Valve Compatible with Volkswagen Passat 2000-2005 & Audi A4 2001-2006, A4 Quattro 2001-2005, S6/S7 2013-2016, Air Pump Check Control Valve with Gasket
[OE Design]: This air check valve is manufactured to the OEM specification to provide factory-fresh appearance and direct-fit. Installation is easy and doesn't take much time or require special tools. No more check engine light and better
[Emission Control]: A failed check valve can cause check engine light to illuminate and exhaust emissions to increase. A new check valve promotes combustion of unburned fuel by injecting air into the exhaust pipe when the engine is started, thus reducing harmful emissions, especially during cold starts
[Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted secondary air injection check valves. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind