Genuine OEM Volkswagen Exhaust Manifold, part number 07Z253033AA. This component collects exhaust gases from the engine cylinders and directs them into the exhaust system. It is typically made of cast iron to withstand the high temperatures and pressures of the exhaust stream. Proper sealing and fitment are critical to prevent exhaust leaks. Genuine OEM manifolds are manufactured to exact specifications for optimal performance and durability.