Dorman 674-831 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 Original Equipment (OE) number: 5L8Z5G232EA, AJ03-20-50XD, AJ03-20-50XK, AJ03-20-50XL, AJ26-20-50X, AJ27-20-55X, AJ38-20-50XB, AJ38-20-55X, AJ50-20-55X, YL8Z 5G232-AA