We’ve not yet seen many modified Mk4 STs on the scene, but Lucinda Lemmon is paving the way with her modified Ford Focus ST.
Col's Mk4 Focus ST - Ford Project and Build Threads - Ford Owners
Just got my Mk4 Ford Focus ST line X , Ford really have stepped up
Modified Ford Focus ST Mk4
Dream Accomplished! Focus ST MK4.5 : r/FocusST
File:2018 Ford Focus ST-Line TDCi 1.5 Rear.jpg - Wikipedia
Ford Introduces Exclusive New Focus ST Edition with Adjustable
SS-tuning.com - Focus ST mk4 kit by SS-tuning moving to
MK4.5 Mean Green Track Pack
Promotional Video - Ford Focus ST (Mk4) Cobra Sport Exhaust
Dreamscience H&R 30mm Lowering Springs- MK4 Focus ST
Ford Focus ST-Line 1.0L 125PS (Mk4) Venom Rear Performance Exhaust
MAXTON DESIGN - PRESENTATION #5 FORD FOCUS 4 ST-LINE