Evan Fischer SET-REPN960310 Catalytic Converters Set of 2 for for Nissan Maxima Altima Pair 5-year or 50,000-mile limited warranty Emission: 47-State Legal (Cannot Ship to CA or NY or ME) Also fits single (3-bolt welded flange) outlet Front Right - Single (4-bolt welded flange); Front Left - Single (6-bolt welded flange) | Front Right - Single (4-bolt welded flange); Front Left - Single (3-bolt welded flange)