Flowmaster 3.5in.X3in. Collector Ball Flange Kit

This header collector ball flange kit takes the place of typical three bolt flange type connections and allows for a leak free and gasket free connection. Features one end with a 3.50-inch inside diameter and one end with a 3.00-inch inside diameter, both ends have slip-fit connections. Welding required. Available in various sizes. Sold in Pairs