4-1 Stainless Steel Long Tube Exhaust Header Manifold for 1997-2004 Chevy Corvette C5 LS1 5.7L

For 1997-2004 Chevrolet Corvette 5.7L 1.875 inch OD Inlet 3.00 inch OD Outlet 3.00 inch OD Piping Diameter 16-Gauge Wall Thickness Piping T304 Stainless Steel 4-1 Design Bolt-On Installation on 3 inch 2-Bolt Ball Flange Flange Extension Pipes Only Designed to improve exhaust gas flow, reducing back pressure. Boosts horsepower and torque for better acceleration and overall performance. Enhances exhaust tone for a deeper and sportier sound without excessive noise. Direct bolt-on installation, no welding or modifications required