OER Parts offers a wide selection of Manifold Hardware for your Chevrolet C20 Pickup. OER Parts offers Chevrolet C20 Pickup Bolts, Chevrolet C20 Pickup Exhaust Flanges, Chevrolet C20 Pickup Extension Pipes, Chevrolet C20 Pickup Header & Exhaust Manifold Paint, Chevrolet C20 Pickup Header & Exhaust Manifold Wraps & Blankets, and Chevrolet C20 Pickup Heat Risers.