Flowmaster Inc is a specialty performance aftermarket exhaust parts manufacturer. Flowmaster has grown over the last few decades to be one of the top performance manufactures of performance mustang exhaust systems, mustang mufflers, racing mufflers, stainless steel mufflers and Mustang accessories. Flowmaster designs and develops their Mustang Exhaust systems for Street & Race use! If you're looking to get that legendary exhaust note, check out Flowmaster exhaust for your Mustang available at AmericanMuscle.com. less