Our turbo manifolds improve your engines breathing ability and increases the cylinder scavenging effect by providing consistent tubing diameters throughout the system. Constructed from heavy-duty, 16-gauge 304 stainless steel, these headers offer 1-7/8″ tubing diameters for increased exhaust gas flow to provide steady boost pressures. They have 7/16″ thick flanges for maximum strength and feature 3″ V-band collector outlets to allow easy pairing with many turbochargers. Clamps and gaskets included.