Dorman 674-959 Exhaust Manifold with Integrated  Catalytic Converter (Non-CARB Compliant) Direct replacement, exact-fit kit replaces the vehicle's factory installed exhaust manifold Cast iron or stainless tubular construction protects against warping and/or cracking Leak-resistant for long-lasting performance A rigorous quality inspection has been undertaken to ensure that this part conforms to product standards Includes heat-shield for protection of hoses, wiring, and other engine components Fits : 2005 Nissan Altima ; 2006 Nissan Sentra and Altima ; 2007-09 Nissan Altima