Two layers of stainless steel are used in the fabricated tubular exhaust manifolds employed on the 6.8-liter aluminium V-8 turbocharged engines in the 2002 Arnage T sedan from Bentley Motor Cars. Stainless steel-enclosed catalysts for the 450-horsepower V-8s are located close to the manifolds in all of the Amage T models for quick light-off. The new sedans are said to be the most powerful ever built by the British company.
