brand new subaru sti exhaust de-cat and down pipe .

Brand New in Original Box •Mandrel Bent T-304 Stainless Steel •This Exhaust System is Mirror Polished and 3" (76mm) all the way through •4.5" (114mm) Diameter •Includes 3' wide Bell mouth De Cat Down pipe and up-pipe •All Gaskets, Bolts and Hooks are included i bought this for my 2004 subaru sti and it didnt last be4 big end where knocking so car was sold the way it was and exhaust came yesterday i havnt opened the box yet for any more q? plz text or call