THIS IS INCLUDED IN THE KIT, this listing is for sourcing spares or replacements. The shortest and simplest main exhaust/catalytic converter we've ever seen. Stainless bend, flex, and main body.  Uses the stock focus gasket to seal to manifold.  Make sure to use the overlapping metal band style of gasket for best sealing and even reuse.  Typical life of the flex is 30k miles with the current 4-point muffler hanger. Flex coupler will survive 3k-5k  miles once exterior braiding breakage is visible.