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Focus ST Performance

The place to chat about the 2.0L EcoBoost engine performance, tuning and exhaust related upgrades for the Focus ST.
Sticky Share Your ST
14 15 16
300
93K
 by BMrks0125
Sticky 2013-2014 Focus ST Safety Recall 14S17
13
9K
 by 00exploder
2014 no crank no start
0
61
 by Rickyf2019
MK3 racing - wheel bearings
1
138
 by rambleon84
DRLs and tail lights flicker off after turning engine on.
1
228
 by joe3217
Se to st conversion
7
8K
 by Chilledreaction
Stock focus st
1
240
 by rambleon84
Thumping Noise PLEASE HELP!!!
3
300
 by GSmobile2018
Oi changed and engine runs better. Every time I change it.
2
29
3K
 by VARIABLE9
Trunk Seam Rust.
0
85
 by Aftrmidnite
FL-910 S to FL-500 S Oil Filter Swap?
0
163
 by Aftrmidnite
Transmission Fluid
2
136
 by zacautomotive
Transmission whining
2
129
 by snailzx3
17x7 wheels on 2014 ST
6
626
 by Zokambaa
Question and possible issue with new rear Hawk HPS pads and new OEM stock rotors
0
91
 by Zokambaa
Mileage on Fost engines?
2
28
2K
 by 2005STgrey
Focus ST3 Projector HID headlights upgrade to 35 watts
7
4K
 by STRunner14
Great Exhaust
5
893
 by felixthecat
ST D3S Headlamp Issues
5
203
 by 89lxvert
Headlamp Fault with Aftermarket Headlights
4
272
 by rambleon84
under engine felt cover
11
1K
 by 89lxvert
Helpful hint for the shifter upgrade process.
0
290
 by p58ff
Vibrating Front Brakes just prior to Full Stop
2
160
 by Delbert23
How to code out Adaptive Headlights on 2016 Focus ST
0
425
 by rezilient
06 Focus ZX4 ST Rear Disc Spindle... Where to buy
7
301
 by Paul1958
Choosing WMI nozzle
0
125
 by [email protected]
2016 Focus Under tray
0
151
 by Steve40th
Turbo replacement not upgrade
2
190
 by Rico1984
Inter cooler
1
164
 by rambleon84
18' ST limited slip differential?
6
305
 by Focus4TheWin
TurboSmart BOV CEL P0246
1
365
 by pasta
What do ST owners think of modded SE's?
18
1K
 by Coolzzy
Dash Vents
0
210
 by claygordon21
New stable mate for my 2013 Focus Hatchback
6
239
 by Snooker
2013 st3 climate control center console update to 2015-2018 possible?
0
123
 by pumafeet10
Whining noise?
7
281
 by pasta
Oil weight
2
20
4K
 by amc49
Focus ST The place to chat about general questions, window tinting, exterior body, interior and lighting u...
14.5K posts
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