Right. A catalytic converter that has an integrated Exhaust Manifold, all in one part. Exc.Japan Built Part. Exhaust Manifold. From 03/2010. From 07/2007. Japan Built Part. Stamped #R0P041. Stamped #R31161. To 03/2010. To 08/2010. To 11/2011. Assembly, EXHAU. Catalytic Converter with Integrated.