Injen delivers an absolutely awesome exhaust system for the 2013-2017 Focus ST. By reducing back pressure for a free flowing exhaust, this cat-back produces power gains of up to 17hp & 15tq. Manufactured with 100% T-304 stainless steel and finished with burnt titanium tips, this is one of our favorite looking exhausts on the Focus ST. The exhaust note has been described as deep, aggressive yet not too obnoxiously overpowering with minimal in-cabin drone.
Constructed from durable 3" diameter mandrel bent T-304 stainless steel tubing for its corrosion resistant properties, this Injen Cat-Back features a straight-through muffler with aggressive burnt titanium tips that exit in the stock location for insane looks!
Fits 2013-2017 Focus ST