Dual Black-Chrome Exhaust Tips: Dual 4" black chrome exhaust tips are the finishing touch on this beautiful exhaust system. The tips bolt-on for easy adjustments and provide a visual punch that will set your Focus RS apart for the pack!, , Exhaust Valve bypass module included: Injen Technology decided to bypass the factory exhaust valve and provides a custom exhaust valve bypass module (P/N 2002) with every Injen Focus RS exhaust system. This allow you to enjoy that rich, crisp sound of your RS whenever you want and without fear of your valve sticking open or closed when you least expect it. , , OE Style Fitment: OE-Style exhaust hangers are used throughout that utilize the OE hanger bushing that came with your Focus RS. This allows the system to install and flex like the factory system during high-stress situations without any damage. A true hassle-free installation with no cutting required. , , Dyno Proven: Plain and simple, NUMBERS talk! We put in the time to test and prove that we have developed a superior exhaust system for your Focus RS. After hours of designing and dyno testing, Injen is proud to say that the SES9004 cat-back exhaust system puts down numbers of up to 16 additional horsepower and 14 lb-ft. of torque., , Engineered and manufactured at the Injen Technology headquarters in Pomona, Ca.

Injen Technologys Super SES line of exhaust systems are dyno-tuned to compliment our performance intake systems; in doing so the Super SES provides maximum horsepower and torque across the power band. The Super SES exhaust system is manufactured from 100% 304 stainless steel. Each exhaust system features CNC mandrel-bent stainless steel tubing CNC machined flanges and robotic TIG welding.

The 2016-18 Focus RS is a machine the demands attention and respect wherever it?s driven. The Injen Technology cat-back exhaust system compliments the Focus RS with impressive power, gorgeous looks, and a distinct sound that is unmatched.

Cat-Back Exhaust System; Incl. 304 Stainless Steel Tubing/Dual High Flow Resonators/4 in. Black Chrome Clamp-On Tips/Hardware; HP Gains +16 HP/Torque Gains +14.0 ft./lbs.;

Injen 16-18 Ford Focus RS 3in Cat-Back Stainless Steel Exhaust w/ 4in Black Chrome Tips

Performance Exhaust System, Part No. SES9004, 2016-2018 Ford Focus RS L4-2.3L Turbo.

Injen Technology Stainless Steel Cat-Back Exhaust System

Performance Exhaust System

Injen Exhaust System

SES Exhaust System

Exhaust System Kit

Exhaust System