To meet those requirements, I chose Ford Racing Performance Parts’ ’13-’14 Focus ST Cat-Back Exhaust System (PN M-5200-FST; $995). From a sound perspective, it suited my preferences to a T.

Owners of the 2012-13 Focus and 2013 Focus ST can now get a Roush cold-air intake system, and ST owners can also opt for a high-performance cat-back exhaust. Skip to main content NEWS ...

Introduction Until the new and highly anticipated 2016 Focus RS makes its way to the streets, the tuner-oriented ST will remain the top-dog hot rod of the Ford Focus lineup. For 2015, this 5-door ...