034 Motorsport mk4 1.8t high flow exhaust manifold. Unit is in good shape overall, free of major issues. Typical surface rust and other signs of use present. Common crack at one of the bolt holes, see pictures.
Larger runners provide a 50% increase in flow over the factory manifold. 034 reports gains of 10 to 20whp and an increase in turbo spool by 100 to 200rpm with just this upgrade alone!
Designed to retain the OEM fit of both the turbo and the downpipe, this is a great upgrade for any mk4 1.8t owner looking to improve performance without major modifications.