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Mk.6 GTI COBB Accessport V3 With Stratified Flash Tune

Mk.6 GTI COBB Accessport V3 With Stratified Flash Tune

Starting at: $695.00USD

Tuning form emailed to you after purchase for your mod list.

Read Your Choices Carefully!

WMI Tune (Includes Datalog Refinement)

May not work on Vent-To-Atmosphere BOV setups:

STuned Crackles:

Further tuning using data collected from your car:

*** Datalog Refinements will adjust your tune for your
specific car. This means the tune may be changed for safety
and/or power based on the data collected in the logs.
Datalogging instructions will be sent via e-mail. ***
Item is in stock


How The Tuning Process Works:

  1. You will be contacted within 24-48 business hours by us via email after purchasing the tune.
  2. Once contacted, you will be asked to complete an online tuning form where you will fill out your modifications, fuel you use, and options such as launch control.
  3. After submitting the tuning form you will receive your Customized Stratified Flash Tune via email. We aim to send out tunes within a 48 hour time window however, during the busy seasons it can take up to 5 business days.


"Elegant" and "Refined" are understatements for how the tune makes the car behave around town. -LMStone510



The Ultimate Tuning Experience


At Stratified we pride ourselves in offering our customers the most complete tuning experience. We hold paramount in providing the most robust tunes in the market while adding a touch of unique personality to each client’s calibration. 

Each Stratified Flash Tune is based upon countless datalogs and hours of development.

  • Includes a complimentary MAF calibration to ensure that your car is properly calibrated for your specific intake
  • Compatible with both OEM & aftermarket DSG calibrations
  • Designed to maximize performance safely and reliably 
  • Smooth and predictable throttle modulation
  • Built-in reactive boost control that adapts to your environment
  • Enhanced driving dynamics with exceptional drivability
  • Customized for every performance modification on your car
  • Preferences set to your liking with a selection of options and features



The Numbers


Depending on your modifications, and fuel you will see boost ranging from 19 - 22 psi.


E30 (Ethanol Mixture) and WMI (Water-Methanol Injection):

The graph below presents a comparison between a 91 octane pump gas and an E30 blend, both Stratified tuned on the stock turbo and stock components. Gains of 15-20 WHP using E30 or WMI are expected depending on the quality of the base fuel.

Stock Turbo:

Stock turbo cars will be limited to the stock turbo's capabilities, fuel quality, and modifications; power output will be between 225-260 WHP for most cars.

The figure below displays an estimate of what power figures you'll see on the Stratified Flash Tune running the stock turbo and stock components. These values are rough estimates; more power can be achieved with more modifications and better fuel.



The Options


Turbo and WMI setup:

All cars MUST be running the stock motor.

  • Engine internals (pistons, rods, bearings) are the only exceptions.
  • Aftermarket turbo kits will require a ProTune.
  • Cams, heads, stroker kits, and auxiliary fuel systems will require a ProTune.

*** WMI setups include Datalog Refinements at no extra charge.


Fuel Configuration:

Supports 91OCT/95RON to 94OCT/98RON, E30. Unique fuel types and mixtures such as race gas, octane booster, etc. will require a ProTune.


STuned Crackles:

This feature adds crackling/burbling sounds to your exhaust when lifting off the throttle and coasting down in gear. The frequency and intensity of the sounds highly depend on your current engine speed during lift-off and most importantly: YOUR EXHAUST SETUP.

When purchased a separate TUNE FILE is sent containing the crackles.

This additional TUNE FILE can be used to Enable/Disable crackles. You must reflash from your original tune to the additional tune and vice versa.

** We have not tested all exhausts for sound quality. During testing, we found that exhaust gas temperatures have stayed relatively the same and catalytic converter temperatures had no significant increase compared to having no crackles. However, the exhaust as a whole does experience higher intensity sound/pressure waves.**


Datalog Refinement: 


  1. Enhance the performance of your Flash Tune IF AND ONLY IF there is leeway or headroom, OR make adjustments based on datalogs to ensure your car operates safely with your local fuel and particular environment using a SINGLE tune iteration.
  2. To report if there are any issues and make suggestions on how to correct them (swapping parts, repairing leaks, changing fuel)
  3. If your car runs optimally on your local fuel or a particular environment, you will receive a full report on its performance.


For more information click here



The Details


The Stratified Flash Tune is THE tune for your stock turbo Mk.6 GTI. These maps are designed and extensively tested to employ our latest tuning strategies that we have spent countless hours refining. We have built-in features that ensure engine safety, performance, and excellent drivability. Your Stratified Flash Tune is customized based on your modifications, fuel, and setup preferences. Modifications such as Front Mount Intercoolers, Intakes, Downpipes, Cat-Back exhausts, and Bypass Valves all determine how the tune is set up. We recommend these tunes for all setups from a 100% stock GTI to one with full bolt-ons.

Big Turbo cars (currently big turbos are only done via ProTuneand WMI setups will come with complimentary Datalog Refinements.

Our experience with these setups has allowed us to be able to finalize the tune within a swift timeframe!

Is E85 good for my TSI motor?

As long as the E85 and pump gas mixture is kept at or below E30 it is perfectly safe to run blended fuels in the TSI. We recommend reading our FAQ or our write-up on The Benefits of E85 for more information. 

What do I need in order to run E30? 

These maps are safe to run on an otherwise stock Mk.6 GTI. That being said, performance will increase as you add modifications such as intercoolers, intakes, exhausts, or by-pass valves.

Can I run full E85? 

Filling up with ONLY E85 is not recommended and may cause deposits to form on the high-pressure fuel pump as well as overwhelm it. The target is to achieve an E30 mixture by mixing E85 and premium pump fuel.

Your power output HIGHLY DEPENDS on your fuel quality, environment, and modifications.

Since fuel quality varies in different countries and regions, the Flash Tune is designed to be safe for the majority of vehicles in the market. This means the flash tune can exhibit 5-10% less power than a ProTune with the stock turbo given that your fuel quality and modifications are able to support that extra power in the first place. Many cars actually make 100% of that power with the Flash Tune while running the stock turbo.

However, if you suspect that the quality of your fuel is subpar or if you think you have more headroom for more power, we recommend choosing the ‘Datalog Refinement’ option as an add-on. This allows us to refine your tune with one iteration to either make sure your car is running optimally with your local fuel or increase power if there is headroom. Keep in mind that it is not guaranteed that changes will be made. As mentioned above, many cars won't need any adjustment from the base calibration!

ProTune is recommended for individuals who:

  • Have exceptionally good fuel (race gas, 100+ Octane)
  • Operate under extreme conditions (road racing, drag racing, HPDE)
  • Have any Big Turbo kit
  • Have any Big Turbo kit paired with an Auxiliary Fuel System
  • Have a stock turbo with a modified or aftermarket wastegate actuator

The Flash Tune ONLY supports:

  • 2009-2014 Mk.6 GTI (Unmodified OEM KO3 turbo)
  • Stage 0 (stock) - Stage 3 (fully bolted) on Stock fuel system or with WMI
  • All World Regions
  • 91OCT/95RON to 94OCT/98RON, E30

Current Version:

The current version (as of March 24, 2017) is 1.00.

  • If you want to get your tune updated to the latest spec and add/change any settings, features, fuel types, or account for any new modifications click here.
  • If you have no new modifications and ONLY want to update your tune version to the latest spec click here.
  • If you want to keep your current version but want to add/change tune settings or features click here.




  • Model: Mk6_GTI_FT_AP_VLK-001_Package
  • Shipping Weight: 0.9kgs
  • 58 Units in Stock
  • Manufactured by: Stratified Automotive Controls


  • Landen S. - Jan 08, 2024
    It’s amazing it’s like an old dog became a puppy again the car feels fast reacts quick and makes the best nosies possible thanks stratified
  • Eric V. - Sep 26, 2023
    Amazing product, step by step instruction was provided for anything I’d need. The AP arrived very quickly and Clayton C. sent out the tune in under 24 hours! Dropping APR for stratified was my best choice yet.
  • Abdullah S. - Mar 03, 2021
    F***ing amazing. Pulls super hard and the crackles are insane. I would definitely recommend