Ford Focus RS Forum banner

cold air intake

  1. Drop in filter VS Cold air intake

    Focus RS Performance
    Hi guys, this is my first post. I've been reading a lot on this forum but the time has come for me to buy a filter. Is there a benefit to having a cold air intake or just a drop in filter with maybe a mountune elbow. Which sounds better in the drivers seat? Has any one started with a drop in...
Top