2013 2018 Ford Focus ST Cat Back? Exhaust System S Type Death Before Injen 3in SS Cat Back Exhaust w Ti Tip Ford Focus ST (13 19) (SES9001TT) Rev9 Exhaust Ford Focus ST (2013 2018) 3" Muffler Delete Catback w Re cp e Austenite 3" Cat Back Exhaust Dual Exit TITAN TIPS Ford Focus ST. The Injen Technology engineers are experts when it comes to performance, PERIOD. From Cars to Trucks to Powersports, Injen has a variety of exhaust systems to choose from. All of Injen Technology Performance exhaust systems are constructed from mandrel bent stainless steel tubing Mandrel bending ensures the tubing maintains its shapes and size throughout the entire length, providing smooth, unrestricted airflow. From the Investment cast flanges to the custom hangers, all Injen exhaust systems are hand TIG welded and handcrafted in the USA and include all tubing, mufflers, and hardware necessary for a hassle free installation. Each system is uniquely designed to offer an aggressive sound that brings out some massive power. Like all other Injen products, the Injen exhaust systems are proudly built in Pomona, CA. Direct fit for 2013 2018 Ford Focus ST L4 2. 0L Turbo Full 76MM piping made from premium 304 SS Mandrel Bent Tubing Features dual Injen Resonators to deliver a clean, crisp, distinctively Injen sound Beautiful dual 4. 5 burnt titanium exhaust tips Stainless Steel Investment Cast Flange for a Fast and Easy Install Hand Crafted and TIG Welded to Perfection for Strength and Durability Premium Stainless Steel Hardware and Hangers for a simple install No Cutting or Welding Required If you're looking to improve sound, power, and looks then this is the system for you! Designed and Manufactured in Pomona, CA