ATP Automotive Graywerks 101311 Exhaust Manifold/Catalytic Converter Engineered as direct OE replacement ensuring manifold will line up and flow like the original unit High grade steel and precious metals resist fatigue and provide long lasting reliable catalyst performance Developed based on OEM ECU monitors eliminating catalytic converter check engine light and restoring correct emission levels Upper and lower flange gaskets along with lower flange hardware are included. (Heat shields and plugs are included where needed.) Limited 5 Year Warranty