The MBRP Installer Series 3" Aluminized Cat-Back Exhaust System (P/N: S4203AL) for the 2016-2018 Focus RS is built for the budget minded consumer without compromising on quality! While the seams are a major point of rust through with some budget systems, MBRP s fully sealed tubing will add years to the life of your system.
This system employs mandrel-bent 3 aluminized steel tubing and a pair of 4-1/2 polished dual wall T304 stainless steel tips. The inventive design of this MBRP cat-back also includes a built-in Helmholtz resonator that is located above the muffler. This Helmholtz resonator will deliver drone-free performance and a truly unique tone. MBRP claims gains of over 7 horsepower and 8 ft.lb of torque while delivering a 10% increase in exhaust flow. And to ease the installation process, MBRP includes all necessary hardware along with detailed instructions.
Features and Benefits:
- Aluminized Steel 3" Mandrel Bent Piping
- Pair of Polished T304 Stainless Steel 4-1/2 Dual Wall Exhaust Tips
- Built-In Helmholtz Resonator Provides a Drone-Free Tone
- Gains of Over 7hp and 8ft.lb. of Torque with a 10% Increase in Flow
- Includes ALL Necessary Hardware and Detailed Instructions
*To easily remove the factory cat-back exhaust, you will be required to cut your OE system directly in front of the rear axle assembly.
Please Note: This system does NOT have a mounting location for the factory electronics that control the OE exhaust valve, but does include an electronic valve simulator. This device will trick the factory computer into thinking the OE exhaust valve is still present and prevent any unwanted check engine light or trouble code. Once the original actuator and electronics are disconnected, the electronic valve simulator can be plugged in and secured.