BBK Performance X pipes will give your Mustang a track ready aggressive sound. BBK's unique die stamped performance Xtracter center X section ensures maximum flow and horsepower. BBK's X-pipes use a 2.5" diameter CNC mandrel bent aluminized tubing and a merged X crossover to improve flow. It also features OEM style hangers that attach in the stock locations for easy installation. This BBK Shorty Off-road X-Pipe is specifically designed to fit the 1979-1993 Mustang 5.0L Automatic with BBK Long-Tube Headers installed. Warning: This part has been designed and is intended for off-road application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations. Product Benefits Aggressive muscle car sound Increased horsepower and torque Made in the USA