There are a lot of choices out there mate. ramair , airtec ,mountune etc. They all do their job
but the costs may vary considerably.Check out some of the posts on here, may help you decide.
I have the RS airbox fitted plus the Aesthetic Energy Wide Mouth cold air intake,which fits behind
the front grill allowing a good flow of cold air to the filter, so shouldn`t be affected to much by hot engine bay air.🤞
A forum community dedicated to Ford Focus ST owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!