Scope of delivery: - 1.8T cast iron turbo manifold upgrade slottedTechnical data: - Cast turbo manifold - K03 flange - larger pipe diameter ø 40mm up to 10% more power - Slotted cylinder head flange to prevent heat cracks - longer bolts must be used see here http://www.turbo-parts.de/product_info.php?info=p1574_Schrauben-fuer-K03-Kruemmer-hochfest-12-9-3-Stueck.html - Nuts with 12 mm wrench size (SW) must be used, as fitting can be tight in some places.Description: Our cast manifolds are manufactured in a metal mold from high-quality cast iron and then CNC-machined, which is characterized by a high fitting accuracy. In contrast to the tubular manifold, this one is more durable. All standard turbos for the vehicle fit onto the manifold. The old manifold is simply replaced with the new one.Suitable for: - all VAG 1.8T engines that are transverse mounted - Turbocharger K03, K04-001Optional matching accessories: - 3 high-strength screws - Manifold gasket for turbo - Gasket for cylinder head