This is the same exhaust manifold featured in the Kinetic VR6 turbo kit. Cast from Inconel steel, this manifold is extremely strong and will produce the horsepower figures you are looking for. This is the perfect manifold for the DIY turbo kits. Specifications: Applications: Volkswagen 12V VR6 Material: Inconel Alloy Outlet Flange: T3 & T4 flange patterns Wastegate Flange: 38/39mm TiAL/Precision. If you have any additional questions plese feel free to contact us.