These Chrome Long Tube headers from BBK will help your 5.0L Mustang produce 18-25 rear wheel horsepower and look great under your hood. For nearly 20 years Mustang enthusiasts have made BBK CNC-Series full-length headers the number one choice for their 1979-1993 Fox body Performance Mustangs. Each BBK full length header system is CAD designed and manufactured with 1 3/4" CNC mandrel bent tubing for unrestricted airflow and a one piece 3/8" laser cut flange for added strength and durability. ALL BBK exhaust headers are pressure tested to ensure leak free performance. Each BBK full length exhaust header system has been designed and dyno tested at the BBK headquarters in Southern California for Maximum performance. Results have shown an additional 18-25 rear wheel horsepower over stock.