BBK shorty headers are made from 1-5 8 CNC-machined mandrel bent tubing with 3 8 thick die-stamped flanges. The equal length primary tube design creates unrestricted and balanced airflow for ultimate horsepower gains. These headers are pressure tested to ensure leak free performance. These shorty headers are designed as a direct bolt on. For use with factory or any aftermarket mid pipes. Kit includes new gaskets and hardware.