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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
94K
 by BMrks0125
Sticky 2013-2014 Focus ST Safety Recall 14S17
13
9K
 by 00exploder
Headlight Upgrades
0
74
 by cheddar516
Low pressure quick disconnect fuel line
1
139
 by hrphilipson
ST inside cabin noise compared to Tianium
1
147
 by rambleon84
ST Bumper
0
104
 by Aydenjs
Need help desperately!
1
190
 by beretta96
2015 ST fog lights
0
123
 by Fester88
2014 no crank no start
0
129
 by Rickyf2019
MK3 racing - wheel bearings
1
211
 by rambleon84
DRLs and tail lights flicker off after turning engine on.
1
301
 by joe3217
Se to st conversion
7
9K
 by Chilledreaction
Stock focus st
1
343
 by rambleon84
Thumping Noise PLEASE HELP!!!
3
361
 by GSmobile2018
Oi changed and engine runs better. Every time I change it.
2
29
3K
 by VARIABLE9
Trunk Seam Rust.
0
121
 by Aftrmidnite
FL-910 S to FL-500 S Oil Filter Swap?
0
207
 by Aftrmidnite
Transmission Fluid
2
182
 by zacautomotive
Transmission whining
2
167
 by snailzx3
17x7 wheels on 2014 ST
6
724
 by Zokambaa
Question and possible issue with new rear Hawk HPS pads and new OEM stock rotors
0
147
 by Zokambaa
Mileage on Fost engines?
2
28
2K
 by 2005STgrey
Focus ST3 Projector HID headlights upgrade to 35 watts
7
5K
 by STRunner14
Great Exhaust
5
1K
 by felixthecat
ST D3S Headlamp Issues
5
282
 by 89lxvert
Headlamp Fault with Aftermarket Headlights
4
452
 by rambleon84
under engine felt cover
11
1K
 by 89lxvert
Helpful hint for the shifter upgrade process.
0
427
 by p58ff
Vibrating Front Brakes just prior to Full Stop
2
210
 by Delbert23
How to code out Adaptive Headlights on 2016 Focus ST
0
650
 by rezilient
06 Focus ZX4 ST Rear Disc Spindle... Where to buy
7
363
 by Paul1958
Choosing WMI nozzle
0
174
 by [email protected]
2016 Focus Under tray
0
200
 by Steve40th
Turbo replacement not upgrade
2
227
 by Rico1984
Inter cooler
1
208
 by rambleon84
18' ST limited slip differential?
6
385
 by Focus4TheWin
TurboSmart BOV CEL P0246
1
529
 by pasta
Focus ST The place to chat about general questions, window tinting, exterior body, interior and lighting upgrades for the MK3 2013-Current Focus ST.
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