These BBK shorty equal length headers are a great way to free up the restrictive factory exhaust system. You can add 8-10 Horsepower to your stock engine with these chrome headers. They feature 3/8" thick die stamped precision fit flanges that are fully pressure tested to ensure a leak free fit. All the tubing is computer mandrel bent for optimum exhaust flow. They come complete with all new hardware and gaskets and will bolt directly on to factory H pipe. Application: 1986-1993 Ford Mustang