Scope of delivery: - 1x upgrade turbo manifold, cast steel 1.8T K03 and K04-001Technical specifications: - Cast steel (high-temperature resistant) - K03 flange - Pipe diameter 37 mm - High Flow - Fits directly onto the original turbo. No modifications are required. Only longer bolts are usedProduct description: Our cast steel exhaust manifolds are manufactured in a metal mold from high-quality cast steel and then CNC-machined, resulting in a high degree of fit accuracy. Unlike tubular exhaust manifolds, this one is more durable. The cast steel exhaust manifold can withstand very high exhaust temperatures.Note: When installing, first bolt the turbo to the exhaust manifold and then bolt the exhaust manifold to the cylinder head.Fits for: - All Audi/VW 1.8T engines 150-180 hp with transverse installation - Turbocharger K03, K04-001Optional matching accessories: - Manifold gasket for the turbo - 3 high-strength bolts