What have I replaced so far on my Mk2 Focus ST? - Update.

This update covers what the owner has replaced so far on a Ford Focus ST Mk2. It highlights components swapped under the hood and inside the cabin, with context on the work performed. The content focuses on maintenance and ongoing work to keep the car running reliably. Viewers will gain a practical sense of typical maintenance steps, part fitment, and what to expect when servicing a used Focus ST.