Flowmaster's American Thunder cat-back exhaust system for the 2013 Ford Focus ST hatchback is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR (Dual Out Rear) emissions legal system for the 2.0 liter L4 turbocharged engine features a specially tuned muffler and resonator, 2.25 inch mandrel bent stainless steel tubing, and 3.25 x 3.75 inch oval polished stainless steel tips. The exhaust system is manufactured in the USA and is covered by Flowmaster's lifetime limited warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
2013 Ford Focus ST 2.0L Turbo - 817637 Flowmaster American Thunder Cat-back System