DriftShop Exhaust Manifolds for Mercedes E55 AMG & CLS 55 AMG Specifications The exhaust manifold converges the gases generated by the engine's combustion towards the other elements that make up the exhaust system. Made from stainless steel these manifolds for the Mercedes E55 AMG and CLS 55 AMG are lighter than the original but also more efficient thanks to their larger diameter and specially designed shape to help extract the gases. These parts feature individual 48mm primary tubes (outer diameter) a 74mm manifold (inner diameter) and an O2 bung. DriftShop exhaust components are manufactured using T304 stainless steel and TIG welding. They are a great balance between performance reliability and cost. These exhaust manifolds are compatible with the following vehicles: 2003-2006 Mercedes E55 AMG 5.4L LHD (left hand drive) M113K engine code 2003-2006 Mercedes CLS 55 AMG 5.4L LHD (left hand drive) M113K engine code