Flowmaster's American Thunder Cat-back exhaust system for the 2014-2017 Ford Fiesta ST with the 1.6L engine is perfect for the person looking for an aggressive exterior sound level with all of the performance benefits that you would expect from Flowmaster. This bolt-on 409S stainless steel system features single 2.50 inch mandrel-bent tubing and an Outlaw series muffler paired with a resonator for maximum power and exterior sound quality, but with a moderate and pleasant interior tone at cruising speeds. Other features include a polished 3.00 inch dual exhaust tip. This system includes all necessary parts, hardware and instructions for an easy installation. Proud to Say Made in the USA.