Exhaust Manifold Catalytic Converter Fits For GMC Canyon 3.5L 2004 to 2006Exhaust Manifold Catalytic Converter for Chevrolet Colorado GMC Canyon 3. 5L 2004 2006 Fitment: (Only 1 O2 ports ) For Chevrolet Colorado L5 3. 5L 2004 2006 For GMC Canyon L5 3. 5L 2004 2006 For Hummer H3 L5 3. 5L 2006 For Isuzu i 350 L5 3. 5L 2006 Including: Exhaust Manifold &Catalytic Converter Gasket Bolts Feature: Dimensional accuracy, durability, application specific design and corrosion resistant features High flow design to provide more oxygen