replacement MAZDA 3 2.3L MANIFOLD catalytic converter. DIRECT FIT UNIT. **** Meets ALL EPA requirements, except California **** Fits all 2004 through to 2009 2.3L manifold and catalytic converter. item bolts to cylinder head ( not included). outlet has 2 bolt flange, gasket included. item is direct fit, no cutting or welding required. stamped manifold collector nearly IDENTICAL to OEM. original heat shields not required with this unit. converter features a ceramic core with high concentration of precious metals. manufactured by a leading converter manufacturer in USA and 100% EPA approved. no cutting or welding required, this is a direct fit unit, simply bolt in place of original item. *PREMIUM DIRECT-FIT ? HIGH QUALITY MATERIAL ? OE STYLE & PERFORMANCE** BRAND NEW!!!