Introducing the BBK Shorty Unequal Length Exhaust Headers - 1-5/8 Chrome for 1979-1993 Mustang 351 Swap. Since 1988, BBK Performance has been a leading brand in bolt-on performance for modern muscle cars and trucks. Founded by Brian & Ken Murphy, BBK was the first to design aftermarket air intake systems and performance throttle bodies for fuel-injected 5.0L Mustang and TPI Camaro models.\n\nWith a commitment to American design and quality, BBK has grown into the largest source of modern performance products for today's cars and trucks. The BBK Shorty Unequal Length Exhaust Headers are designed for 1979-1993 Ford Mustang 351W applications, offering a bolt-on 12-18 HP increase.\n\nConstructed with CNC mandrel bent tubing for 35% increased flow over stock, these headers are built for maximum performance and durability. Featuring heavy gauge 1-5/8 tubing, 3/8" laser cut flanges, large bore patented designed collectors, and custom precision hand and robotic welds, these headers provide improved horsepower, torque, and sound over restrictive stock systems.\n\nIncluded with the headers are new gaskets and hardware for a direct "perfect" fit replacement. Upgrade your performance while maintaining OEM quality and drivability with the BBK Shorty Unequal Length Exhaust Headers. Experience the difference with BBK - the number one aftermarket performance exhaust brand in the USA.