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

Injen is known for making performance parts that help your car breathe better and sound great. This cat-back exhaust system for your 2016-2018 Ford Focus RS is a prime example, designed to complement the aggressive nature of the RS with a distinct sound and improved performance.

Unlike some other systems that use smaller, stepped-down tubing, this Injen system features a full 3-inch diameter, mandrel-bent tubing made from 304 stainless steel. This allows for better exhaust flow, which can free up power throughout the RPM range. Instead of a single large muffler, it uses individual resonators, giving it a unique and crisp sound that really lets the RS engine sing. Injen also includes a custom exhaust valve bypass module, so you can enjoy that aggressive sound whenever you want, without worrying about the factory valve sticking.

The rear of the system is designed for a precise fit, with multiple slip fittings for easy adjustment right out of the box. It bolts on with OE-style hangers, using your factory bushings so it installs and flexes like the original system. The system is finished off with dual 4-inch black chrome exhaust tips that add a sharp visual touch. Injen has dyno-proven gains of up to 16 additional horsepower and 14 lb-ft. of torque with this system, and it's all manufactured and hand TIG-welded in Pomona, California.