COBB Accessport V3 EcoBoost 2015-2019

COBB Accessport V3 EcoBoost 2015-2018 is rated 4.9 out of 5 by 47.
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  • Multi-Gauge Display
  • Automatic Dimmer
  • Data Logging Capabilities
  • Easy-To-Use Interface

COBB Accessport V3 for all 2015, 2016, 2017, 2018 and 2019 EcoBoost Mustangs.

COBB's Accessport V3 is the best tuning option available for your 2015-2019 EcoBoost Mustang. This flexible ECU upgrade solution unlocks power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations. The Accessport V3 (P/N: AP3-FOR-003) can provide off-the-shelf calibrations for most bolt-on modifications and it should be the last engine management solution you will ever need. Along with all the new viewable upgrades from the V2, the V3 also has more speed, more memory, more map storage, more live gauges and more troubleshooting help.

Choose from multiple gauge setups which include your choice of one gauge to six gauges. Scroll through tons of different display parameters to view the specific information important to you. Information can be displayed in metric or imperial units. A shift light can be set to the desired RPM and is plenty bright that a separate shift light isn't needed. Monitor all the parameters you want to view and customize each layout for the street, strip or track.

COBB's Stage 1 93 Octane Calibration has seen a peak of 1.5% RwHp and 22.6% RwTq, but has shown is largest improvements of 22.9% RwHp and 25.6% RwTq throughout the power curve!

*Peak gains are measured as the difference between the highest points of the two plots. Max gains are measured as the largest gain at any single point between the two plots, results may vary.

Features and Benefits:
- Customizable Multi-Gauge Display
- Data Logging Capabilities
- Multiple Tuning Options Including Timing, Shift Light, Launch Control and more!
- In Vehicle Mount with On/Off Switch
- Large, Full Color, 1/1000 High Resolution Screen
- Automatic Dimmer
- Easy-to-Use Interface
- Interchangeable Face Plates

ATTENTION: The COBB Accessport fully supports the European (EDM), Australian (AUDM), South Korean (SKDM) and Chinese (CHDM) Domestic Market EcoBoost Mustangs.

Measure 0-60 MPH time, 1/4 mile time or horsepower with a built-in dynamometer. An included trouble code reader allows you to diagnose problems on the fly without the need to stop at a garage. The most important aspect of the Accessport V3 is the ability to install different maps and quickly adjust tuning elements such as idle, timing, launch control and flat-foot shifting. Create your own custom maps for your Accessport V3 using Accesstuner Race. A complete OEM tuning table provides access to optimize your mapping for any set of modifications. Data logging is included so you can view engine vitals which can alert you to any changes that need to be made to your tune. If self-tuning isn't your thing, visit a local tuner in the COBB Professional Tuning Network to have a custom tune created and loaded onto your Accessport V3. You don't even need to physically visit a tuner if you don't want to. Use easy data logging and map loading on your Accessport V3 to have an e-tuning expert remotely custom tune your vehicle.

Tech Tip: Several COBB Custom Features (CCF) are now user adjustable through the Accessport for the EcoBoost mustang. These adjustments include changing map slots, turning custom traction control on/off and adjusting the amount of slip the custom traction control enables. Also, automatic vehicles can now take advantage of new features that include a bump box, burnout mode, transbrake and 2-step. These adjustments can be found under “Tune” -> “Adjustments” -> then select which new feature you’d like to adjust. It’s important to note that the CCF Accessport Adjustment are dependent on the calibration file being used. For example, the Traction Control feature must be enabled via a custom tune (Custom Tune is NOT Included).

*To ensure your COBB Accessport has all of the available features listed, please make sure to check for the latest firmware release.

*This COBB Accessport V3 is NOT compatible with 2020 EcoBoost Mustangs at this time.

Installation is extremely simple, fast and straight forward with easy-to-understand directions to guide you through setup. Initial setup matches the Accessport V3 to your vehicle modifications. The on/off switch allows you to turn off the programmer so the battery doesn't die. An automatic dimmer brightens and dims the screen depending on day or night.

Please Note: Use can use your PC or Mac based computer to manage maps, download recorded datalogs or quickly update your Accessport. To ensure your new Accessport V3 is up to date, please click HERE to download the latest version of COBB’s Accessport Manager for free.

Manufacturer Part Number: AP3-FOR-003

Order the COBB Accessport V3 for your 2015, 2016, 2017, 2018 or 2019 EcoBoost Mustang from CJ Pony Parts today!

Note: This item is not CARB (California Air Resource Board) exempt and is not legal for sale or use in the state of California.

Installation Difficulty


Novice skill is required for this installation.

Installation Videos

Vehicle Fitment

This product will fit the following Mustang years:

Rated 5 out of 5 by from Cobb Accesport V3 for 2015 Ecoboost Mustang Got this unit 2 months ago for my 2015 Ecoboost Mustang after reading many reviews. I wanted a little boost to the stock output and keep a civil driveability for the street. This tune delivers and the bonus is that you get 5 power options to choose from with the OTS Stage 1 tune. And the ability to choose the different slots can be made from the cruise control buttons without the Accesport being attached. I waited until I passed 1200 miles before installing the tune and you can feel the difference immediately, especially in the throttle response. Installation was easy as advertised and the product is top quality with online back-up and updates direct fro Cobb online.
Date published: 2015-06-09
Rated 5 out of 5 by from Cobb Tuning Does it again!! Just got this in yesterday, super easy to install and straight forward instructions. A bit scary at first because you get all the warnings and sounds from the main display but after about 10-15 minutes (yes its that long) everything is loaded and good to go. I had a V2 access port on my 2008 WRX and this V3 version is much brighter and customizable with loaded extras and gauge options. The switching on the fly of maps is by far the best feature (and the access port does not need to be plugged in) as well as the economy mode which is essential in my daily driving. I am super ecstatic and very satisfied with this new version, Cobb does it again and has kept my business and satisfaction for cobb products. Cant wait for the downpipe, cat back and intercooler to come out from cobb.
Date published: 2015-02-27
Rated 5 out of 5 by from Makes the Car! This tune absolutely made the car for me. It was fun beforehand, but you didn't really get boost until really late rpm and felt like it was just trying to be a v6 or a GT but with 4cyls. This gives you boost exactly when you want it and solidifies in my mind why a turbo Mustang can be just as much fun as any other Mustang. I put the 93 octange stage 1 tune on my ecoboost with the performance package. The tune basically made it feel like a completely new car that became way more responsive and fun to drive than stock in every way I can think of. It will throw your head back in your seat and ALWAYS bring a smile to your face. I honestly just can't stress how much more fun the car is with this tune. It's easy to put on - plug in, pick your tune, wait 20 minutes, and you're done. If you are on the fence at all, just go for it. You will not regret it one bit.
Date published: 2015-10-22
Rated 5 out of 5 by from Quick off the line and carries through I flashed my mustang two weeks ago. Totally worth the money. Already giving GTs competition between red lights . They pull up expecting a dog v6. Then wahpow! In economy mode I've also reached up to 33.6 mpg.
Date published: 2014-12-25
Rated 5 out of 5 by from Definitely satisfied with this tune I purchased the AP3 for my Mustang a few months ago and installed it with only 400 miles on the car. My car now has over 3000 miles and I'm still very happy with it. From the factory, Ford tries to give the EB a perfectly flat torque curve by severely limiting boost at low RPMs. This tune, in higher boost modes, simply brings the boost up to the peak level allowed by the factory (or a little over) much earlier than it would otherwise, which results in some proper face-melting acceleration in lower gears. Because of this mapping scheme, I feel completely confident in the car's reliability. My favorite part of the tune is actually economy mode, which detunes the car to about 270hp. I have seen up to 32mpg highway during long drives, and I always stay in the 20s during city driving. Detuning also makes the car a lot safer on cold mornings, because the stock performance pack tires are borderline dangerous in the cold. Furthermore, holding down the cruise cancel button and seeing the tach point to the map selection is immensely satisfying. I don't use flat-foot-shifting often but it's quite fun and makes shifting quite quick.
Date published: 2015-02-21
Rated 5 out of 5 by from Awesome tuner. Just figured it out and love it I got this tuner for my 15 ecoboost mustang and just figured it out. All I can say is holy mother of God my car is fast as heck. Totally satisfied and will buy the accessports from now on.
Date published: 2015-08-07
Rated 5 out of 5 by from Excellent value, what a difference I received my COBB Accessport 2 weeks ago and was excited to see what it could do for my 2015 Ecoboost Mustang. It was easy to install the map that i wanted to run. I loaded the Stage 1 93 octane map in about 15 minutes. Took the car out and wow! What a difference. The main difference could be felt in torque as it was strong, much stronger across the rpm range. The car pulled well. Feels like it woke a sleeping monster! The thing I like is the ability to switch between maps on the fly. Want Economy, choose that map. Want power, choose the level you want. It also is used by many aftermarket tuners for fine tuning for your upgrades. I am not done yet, so I am looking forward to more power in the future.
Date published: 2017-08-24
Rated 5 out of 5 by from Holy S**t! So I definitely expected to get some gains out of HP and TQ but wow. It is like a whole new car. If you were on the fence about this then think no more. Order it, order it now, seriously, like now. FYI, get the AccessTuner Race Software too. Hot swapping maps? What? Launch control, burnout mode, custom mapping. Cobb, gotta say guys, worth every penny!
Date published: 2015-08-18
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Will this work on a 2018 Mustang Ecoboost Auto?

Asked by: MikeD47
Yes, 2018 support is now available.
Answered by: rk cjpp
Date published: 2018-12-13

Hi . I have a Ecoboost 2015 US . I have Roush Axle back - Roush CAI in it .Spark plugs will come soon. We have here in Germany 95 and 98 and 102 Octane . Would it work and can be installed on the car?? If yes,which stage?

Asked by: Kimo
The COBB Accessport fully supports the European (EDM), Australian (AUDM), South Korean (SKDM) and Chinese (CHDM) Domestic Market EcoBoost Mustangs.
Answered by: rk cjpp
Date published: 2018-11-02

Hi, Im from Italy. i've bought a 2016 US mustang 2.3 ecoboost with automatic transmission. In Italy we have a 95 or 98/100 octane Fuel. stage 1 can Fit with those Fuels or i cant use this product? and there's issues for an automatic US model? thanks

Asked by: StefanoITA
I would suggest getting a custom tune because of the difference in fuel.
Answered by: rk cjpp
Date published: 2018-09-28

Hi, I have a South African model 2017 Ecoboost mustang with Automatic Transmission. The vehicle has same specs as the European models(EDM). We use both 93 & 95 Octane here in South Africa. Will the COBB Access Port work on my vehicle?

Asked by: Mervinp1
Answered by: CJPP Dave
Date published: 2018-08-28

Are there any necessary upgrades required for the stage 1?

Asked by: 843brians
I would definitely at least upgrade the air filter to the COBB High Flow Replacement Air Filter. See P/N: 7M1101
Answered by: CJPP Dave
Date published: 2018-06-26

Hi, im using 2016 r.handed ecoboost.(Aus) i already installed borla atak&borla down pipe& c&l cold intake. So which version do i need to choose if i purchase this machine.(Which stage) and do i need to go tuning at any workshop after installing?

Asked by: Sultan shah
I would suggest a custom tune.
Answered by: rk cjpp
Date published: 2018-06-25

Hello, I'm from Italy and own a Mustang (EU) 2015. I've seen the Accessport fits also EU Mustangs but the question is: does the Accessport come with a custom tune installed? Thanks in advance. Best regards, Emiliano

Asked by: Emiliano
It will fit your Mustang but it will not include custom tunes, only access to Cobb's Network of canned tunes.
Answered by: CJPP Dave
Date published: 2018-06-15

can Cobb write custom tunes and sent them via email to me if i purchased the COBB Accessport V3 or i should pay for every custom tune i want for my 2015 Performane pack mustang ecoboost? I only have bolt ons installed on my car.

Asked by: ECO2015
With just bolt-ons you can use the pre-loaded Maps once you update the device. If you want something custom, you will need to reach out to a third party that specializes in writing custom tunes on the EcoBoost Mustang using the Cobb Accessport.
Answered by: CJPP Dave
Date published: 2017-12-12
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