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Focus ST Stratified Pro Tune

Focus ST Stratified Pro Tune

Starting at: $350.00USD
Item is in stock



2013+ Focus ST Support

How to Get Started on a Stratified Tune:

- First, make sure you have the Cobb AccessPort installed. If you do not have a COBB AccessPort, we can provide you with a brand new COBB AP bundled with the tune at a discount.

- Make sure all the modifications on your car are installed correctly and the vehicle is running without mechanical issues.

- Read what you get as part of the tuning package at the bottom of the page.

- Select the correct options for your tune, and purchase the tune.

- Once you purchased the tune you will be emailed and asked to complete and online tuning form. Your tuner will review your submission before beginning the tuning session. 

Now on to the details ...

The Focus ST is a global performance vehicle that is both potent and lots of fun to drive. The ST is turbocharged and uses an advanced direct injection system as well as dual variable valve timing - as far as production vehicles go, the ST EcoBoost is cutting edge. The control system to make all this work is both powerful and complex with massive capabilities. 

With an engineering backgound, years of experience tuning direct injected, turbocharged vehicles and the help of the COBB AccessPort we are able to offer a comprehensive tuning service for your ST that ensures performance, driveability, and safety.

One of the great aspects of modern vehicles such as the Focus ST is that unlike the old days, you don't need to take the car to the dyno to tune it. It comes with a stock wideband sensor, two very sensitive knock sensors, and high resolution logging of all the engine parameters. This allow us to not only make changes to the tune - but to actually see how the car behaves in the environment that it is driven in! Having data available from the road coupled with our experience on the dyno and on our own development vehicle gives us a perfect picture of how your ST performs as we progress through the tuning process.  

Our professional and COBB certified tuners can tune a vehicle locally as well as remotely - anywhere in the world!

We are dedicated to customer satisfaction and our consultation service not only ensures your car is running at its best - but that you also know your vehicle better at the end of the process. 

What you get:

- A one-on-one Professional Tuner with hundreds if not thousands of hours of experience on the Focus ST engine and platform whom you can contact via e-mail or phone.
- A tune that is refined specifically for your car, your modifications, your gas quality and your goals. 
- You and the tuner share maps, data logs, and you tell your tuner how you'd like the car to drive, address issues of concern, and work towards your power, safety, and driveability goals.
- The tuner will send you new maps that you flash on the vehicle and then send datalogs as well as feedback on how the car drives and runs.
- Remember that your tuner has a lot of experience so if something doesn't look right or if issues pop up, they will be able to pick these out and alert you as well as offer possible solutions.
- Your tuner can also recommend parts and modifications that will help you achieve your desired goals if changes need to made to your car's current setup.We can supply pretty much any parts for the vehicles we support and tune so let us know if you need any parts.

This process goes on until you or the tuner are satisfied with the results. A standard stock turbo tune usually involves 4-6 iterations but this can vary from car to car. Each option you add (secondary maps, big turbos) adds to the number of iterations. Our goal is to respond to your datalogs/questions within 2-5 business days. Sometimes we get very busy (and you may get busy) so we have a 6 month period for completing the tune removing the stress in case you need to take a break, something needs fixing, or your tuner is away for a few days. We are driven and passionate about achieving excellent results for your tune. Due to this every map iteration during the tuning process will be carefully built to be driveable and safe while building up to the final product. If there is an emergency or an unexpected result that needs immediate attention, contact us through our online form for a more immediate response. 

Part changes during the tuning process: Your car should have all the parts installed and working well before starting the tune. Sometimes, during the tuning process, you will need to change a part that affects the tune and requires some back tracking. If a part that affects tuning is changed, there is a top up tune charge.

The Options:

Here are some of the options and features that allow you to further customize your Stratified Custom Tune.

Map Slot Options:

Map Switching: We take advantage of the COBB AP's map switching utility allowing you to select from up to 5 different mapsCOBB Map Switching. Rolling map switching can be enabled to allow you to switch maps on the fly while you are driving.

Flat Foot Shifting: This feature allows you to shift without lifting off the accelerator pedal. You may select which RPM you would like this to be activated at.

Launch Control Settings: We can setup different launch control RPMs. Both Fuel Cut and Throttle Cut Launch Control are included and set at the same RPM. Street tire cars have this set up between 2500 and 3500 RPM. 

Valet Mode: With great power comes great responsibilty. In this map map we set the primary rev limiter to 3,000 rpm (or whatever RPM you desire as well as cutting boost to 10 psi (or whatever limit you wish).

Custom Rev Limiter: We can set Rev Limiters to whichever RPM you desire, it does not need to be the same in all Map Slots.

Custom Boost: We can set a maximum amount of boost for a particular slot for you with this feature. Keep in mind that this won't allow you to exceed the maximum boost levels that your car can handle safely.

Low Boost: We can setup a low power (15psi) map for winter/poor conditions/limp home.

Anti-Theft Mode: At your request we can set the fifth map slot to be an anti-theft map instead of a high performance map. With this map flashed the car will start for a second and then very quickly shut off.

*** Anti-Theft Disclaimer*** If you enter anti-theft mode at any time, it will shut off the car. If you select the options for Rolling Map Switching as well the Anti-Theft mode there will be no protection to stop you from switching into Anti-Theft mode while driving. This leaves open the possibility that you may accidentally shut off your vehicle while driving. 

Other features:

Sound Symposer Disable: The Focus ST sound symposer does not work well with aftermarket cat-back exhausts and becomes very noisy so we have an option to shut this off without requiring block off plates.

Active Grill Shutters: To increase airflow through the intercooler resulting in increased cooling we set it such that the active grill shutters are always open.


Please refer to the following infographic to customize the strength of your traction control:

The guys and gals at COBB have implemented an ignition retard traction control system. The OEM traction control works based on applying the brakes and closing the throttle. The COBB system works by reducing output via ignition timing reduction when wheel slip is detected. It is a slick system and it works all the time while enabled on a tune. More about it here. We have further refined this system making our very own Stratified Traction Control which enhances the driving experience that the generic COBB system takes away. From our experience our 'Optimal' setup has proven to be the best mode for maintaining adequate traction, but also keeping the excitement of the driving experience. Our calibration allows for the perfect amount of slip allowing the driver to modulate their pedal input without too much intrusion from the ECU. Perfect for rainy seasons!

Custom Shift Lights: You can either set your shift light to turn on at a certain RPM or you can disable it completely!

2nd Gear Torque Limit: Want more traction in 2nd gear? We can limit the torque for you here so that you don't burn through your tires!

Idle RPM Change: We can also change your idle RPM. This is particularily useful if you're running stiffer motor mounts to eliminate unwanted vibration during idle.

Exhaust Crackles: The V2 crackles and pops are going to be more audible with all exhaust systems compared to V1. However we have not tested all exhausts for sound quality nor do we have any data on the long-effects of this feature on the catalytic converter.

Any further questions - please feel free to Contact Us. Please remember to check your email for the online Tuning Form after you have purchased the tune. This document tells you how to take required datalogs and the tuning form inside the document must be completed prior to starting the tune itself.






  • Model: Mk3_FoST_ProTune
  • Shipping Weight: 0.000000001kgs
  • 82 Units in Stock
  • Manufactured by: Stratified Automotive Controls


  • Justin D. - Oct 06, 2023
    I worked with Ke on my ProTune for my 2867r gen 2 turbo setup with a Tial EWG. Perfect tune, the car feels amazing and I am very happy with the results. Ke listened to my wants for the car and gave me the support I needed to make the car properly and safely function all while adding the power and boost level I wanted as well. A long with a fantastic tune, came with their crackle tune file as well. The car sounds amazing! Ke Xu was a fantastic tuner and helped answer all and any questions that came up.
  • Joshua G. - Mar 24, 2023
    Got my 2017 Focus ST tuned by stratified and I couldn’t fault these guys at all, they know there stuff very well, I love the crackles and pops tune I have now, it sounds awesome. The car drives so good, it actually feels a little bit faster then my previous tune I had with another company. I was hesitant that the tuning process was going to take forever, but the guy I was speaking to had very good customer relations! Couldn’t fault em !!!
  • Travis C. - Mar 20, 2023
    This is my first protune not my first etune and stratified has been amazing. Ke Xu has made that experience very easy and had an incredibly fast response time with any concerns or problems I had. Stratified has made my car come to life and really allows me to get the most out of all my performance mods. Finally on e30 and the etuning process was fun and easy.