Volkswagen Accessport V3 GTI (Mk7) 2015-2018 USDM

$ 650.00

Availability: Ships in 24 hours
Product Code: AP3-VLK-002

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Accessport Support
Maps Available


Simple ECU flashing with gauge package! The in-cabin mountable Accessport V3 has a large, full color, high resolution screen which allows you to monitor up to six parameters in real time. Fully customizable from the look (multiple bezel colors), layout (set up race, street, or dyno gauge clusters), and mounting options (choose from 1,000s of standard vehicle mounts). And what's looks without brains? More processing power, memory, and storage to flash faster while saving all of your maps and logs. This is your new Accessport.


The Accessport is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your Volkswagen GTI. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations. Follow our staged upgrade path with pre-loaded Off The Shelf (OTS) maps or use custom mapping for any modification level. It's the last engine management solution you'll ever need.

Stage 1 93
Peak Gains*
+26% HP / +22% TQ
Largest Gains*
+35% HP / at 5500 RPM / +30% TQ at 2200 RPM

Stage 2 93
Peak Gains*
+30% HP / +31% TQ
Largest Gains*
+41% HP at 5730 / +37% TQ at 2250 RPM

Stage 3 93
Peak Gains* +37% HP / +41% TQ
Largest Gains* +46% HP at 5730 RPM / +41% TQ at 3050 RPM

*Results may vary. Power as tested on 2016 GTI Manual using these identical calibrations. Generally speaking, the 91 octane calibration has a richer fuel curve and a less aggressive ignition advance map to help compensate for 91 octane fuel and/or less than ideal atmospheric conditions. The map designed for 93 octane is the most aggressive.


Volkswagen Accessport V3 GTI (Mk7) 2015-2018 USDM
  • Larger, full color, higher resolution screen
  • Customizable multi-gauge display
  • In vehicle mount, with on/off switch
  • Faster and easier to use with a familiar face
  • Interchangeable faceplates


Simple Installation:  Everything is included for the simple installation!  Intuitive on-screen instructions identify your exact vehicle and available maps.

Simple Uninstall:  Revert your ECU to exactly as it was before with the easy to use Uninstall option from the main menu.

Trouble Codes:  Read engine trouble codes to diagnose issues.  Clear them when resolved.  Prevent expensive trips to the dealership.

Change Maps:  Store up to 100 maps from our OTS map database or from your favorite COBB tuner and quickly switch between them for any need.

Gauges: Use your Accessport as a gauge to monitor boost or any other live information, directly from the ECU.

Data Logging:  Record multiple data channels simultaneously for in-depth evaluation of engine performance.  Stores up to 10 hours.

Performance Measuring:  Welcome to your own performance evaluation suite!  Measure 0-60 mph time, 60 foot and ¼ mile ET’s. and Trap Speed.

Shift Light:  Set custom RPM warning lights for perfect shifts every time.

AP Manager:  Use your PC or Mac to manage maps, download recorded datalogs, or quickly update your Accessport.  Download free from right HERE.

Volkswagen Specific Features:

Adjustable Traction Control: Adjust target traction slip on the fly (Slots 1-8) and maximize tire grip to best suit given track conditions (wet/damp/dry/street/slip/burnout/etc). Note: Feature must be enabled in ECU calibration for use.

Flat Foot Shift: Improve shift times and keep boost built during shifts. Flat Foot Shifting can hold engine RPM at a set RPM between 3000-8000 RPM during shifting. This feature is enabled in COBB OTS maps.

Launch Control: Adjust Launch Control on the fly with 6 pre-configured RPM slots to dial in launch based on track conditions and vehicle configuration. Enabled in OTS Maps and configurable within Accesstuner Pro.


Customer Photos

Volkswagen Accessport V3 GTI (Mk7) 2015-2018 USDM is rated 4.6 out of 5 by 28.
Rated 4 out of 5 by from Excellent Customer Service I bought the AP from RallySport Last week. Installation was simple and quick! The features of the V3 are amazing! Unfortunately I had an issue with my intake manifold so I had to remove the unit to take the car in for service. However in troubleshooting the issue prior to a shop visit Grant from Cobb CR was very helpful. He responded quickly and then asked for an update once I found out what was causing the issue! I really appreciated the quick response from the Cobb team and they for sure made me feel like they genuinely cared that I got the car back in working order! I absolutely recommend a purchase from them and will be going back for parts in the future!
Date published: 2017-03-15
Rated 1 out of 5 by from Better ways to spend your money. When I first bought the Cobb AP for my 2017 AP it seemed to be pretty amazing. You can flash a tune on to your car and clear engine codes! Who doesn't want a faster car?! I installed the 91 Octane tune (took about 20 minutes) and went for a drive, monitoring knock which was all over the place. This is ONLY from a stage 1 with 91 octane top tier gas. Strike 1. I went back and immediately uninstalled at which point I noticed it was giving me an error code U112e/431a. I think nothing of it and "clear" it. Lo and behold, it doesn't clear. So much for that feature. Strike 2. Other than these it's an OK product, but also feels technologically dated and flimsy.
Date published: 2018-05-23
Rated 5 out of 5 by from Small unit Massive Power increase! I've had many Cars with 325 to 525 HP, & a few Turbo cars also. The Cobb AP stage #1 made my bone stock GTI feel like a Mustang GT W 425+ HP. While it may seem a bit Expensive? YOU get,- Super simple Installation, a small guage unit & Diagnostic unit, flash back to Stock, Valet, Upgrade & More! for me it was a no-brainer that Cobb was the way to go. I must admit I was going to go with one of the other 3 companies thinking the Cobb would be a weak underperformer. I can assure you, it produces more power than a reasonable person can expect! I'm floored at how FAST the car is now!
Date published: 2018-02-24
Rated 5 out of 5 by from Great mod I bought this about 2 years ago and I still use it. It’s amazing for showing you all the data you wanna see on your dash & it’s pretty accurate! You can swap tunes on the fly as well. There’s been rumors that the stage 1 & stage 1 plus tune ruins the clutch in manual cars fast, I will say it’s false. I was on a stage 1+ 93 octane tune for at least a year. Now, stage 2 might do more harm if you’re still on a stock clutch. Although in my case, I drove it daily and hard from time to time. It does not ruin your clutch, BUT can increase clutch wear if you drive it every day like you stole it. In other words, if you know how to drive stick your clutch will be just fine! Great product all around!
Date published: 2018-12-08
Rated 5 out of 5 by from Top quality device and company! I've had multiple handheld tuners, but the AP is the best by far. Fast load times, seemless PC/USB connection, and it just feels well made. My device arrived with mounting accessories, a nice zippered case, and 2 faceplates (black and gray). The black matches my interior great. The magnetic dash mount holster makes it super quick and easy to pop out of the car and take it into the house for updates. Tune switching is fast (about a minute) after the initial flash from stock. All this, plus the included customize-able gauges makes this a win from any angle. This Accessport just gives you so many more features and flexibility vs paying similar money (if not more) for a one-and-done flash from competitors. There is also a large group of protuners around, and online e-tuning shops that utilize the Cobb platform.
Date published: 2017-04-13
Rated 5 out of 5 by from Must have! I wasn’t the biggest fan of the Ots tunes however later getting pro tuned and having all of these features on hand with touch of couple buttons and very quick uploads it’s a no brainer that I made a right decision. You’ll be satisfied in the long run with this tool trust it’s just like a flash tune and that’s it buy it and feel good about money well spent.
Date published: 2018-05-04
Rated 5 out of 5 by from Just an awesome tuning platform I’ve used the accesport on my previous car, it was a 2006 mazdaspeed6 and I loved it. Got a protune done to it. Since selling it, I made sure my next car will be able to get tuned with an accesport and my current car is a 2017 Volkswagen gti. She got protune as well and I’m enjoying the new power. The best part is, I don’t need to add any gauges as the accesport can do that too. Overall, it’s a great product and the tuning support is awesome.
Date published: 2017-12-28
Rated 5 out of 5 by from Awesome buy!!! I've had this Access Port for about a month and I honestly love it. I can definitely tell the difference in power gains! There's only 1 problem; the boost PSI readings are off.. obviously this is a new item so I assuming Cobb will come out with a new update to fix it. Other than that this was a great buy and highly recommend it!!!
Date published: 2017-03-02
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