Give your Mustang that unmistakeable Flowmaster sound with a nice power boost by installing a American Thunder cat-back Exhaust system. Featuring stainless mandrel bent 2.5" tubing this Flowmaster system will improve exhaust flow for an increase in power, and the included Super 44 Series Mufflers will improve your exhausts sound for a deeper throatier muscle car exhaust note. Finished with 2.5" [olished stainless steel tips.