Sunbeam Sport large bore Janspeed type exhaust manifold

This is one of two exhausts we are supplying to the same customer in Germany,the other being a full race type with twin Weber 40 dcoe carburetor inlet manifolds too.The engine it fits can be the standard 875cc Hillman Imp all alloy motor,or the larger 998cc block and larger oversizes too.The Singer Chamois Sport and Caladonian Imp used the same engine.