Maximizer Header & Resonated Side Pipe for Corvette C2 & C3 Stingray SBC V8 Exhaust Header Manifold Fit For 1963-1982 Corvette C2 C3 350 SBC with Resonated Side Pipes Maximizer High Performent Stainless Steel Exhaust Header Manifold 1963-1982 Corvette C2 C3 350 Small Block 4 Equal Length Primary Tubes Diameter: 1 7/8", Collector Diameter : 4", Header Flange Thickness: 3/8"a fast flow 63-82 Corvette Stingray