Hooker BlackHeart introduces their 3.00-inch, 304 stainless steel cat-back exhaust system for the 2013 to 2018 Ford Focus ST with the 2.0-liter engine. On the chassis dyno, this system showed max gains of 21 hp and 18 lb-ft at the wheels. This exhaust system uses mandrel bent tubing to help maximize the exhaust flow and increase performance. The polished stainless steel high-flow straight-through muffler offers a deep performance tone and reduces the weight of the system by 9 pounds over the stock muffler. This system also includes a resonator to help keep the in-cabin exhaust drone better controlled while driving. The system is finished off with a pair of carbon fiber 4.50-inch stainless steel tips for a stylish appearance. This system includes all of the necessary hardware and utilizes the factory mounting points for a hassle-free installation. Backed by a limited lifetime warranty.