MBRP S4200409 3 Inch Cat Back Exhaust System Dual Center Outlet For 13-18 Ford Focus ST 2.0L EcoBoost T409 Stainless Steel CORE-300 Protecting vital engine components from

Protecting vital engine components from heat is tough

Improved cold weather starts

Smoother Internal Y-Pipe Geometry Than Competitors Up-Pipe Designs

On the Stage 3 build

MBRP S4200409 3 Inch Cat Back Exhaust System Dual Center Outlet For 13-18 Ford Focus ST 2.0L EcoBoost T409 Stainless Steel CORE-300 Protecting vital engine components fromArmor Plus for the enthusiast who needs a system that can take anything that the road throws at it. 2013 2018 Ford Focus ST 2. 0L EcoBoost, T409 Stainless Steel 3 Inch Cat Back Dual Center Outlet. 2013 2018 Ford Focus ST 2. 0L Ecoboost 3 Inch Cat Back, Dual Center Outlet Smoother Exhaust Flow Enhanced Exhaust Tone Rugged T409 Stainless Steel Construction 4 inch OD Tip Included Smooth Mandrel Bent Tubing Gains Of Up To 18 Horsepower Torque Increase Of