Subaru Accessport V3 (AP3-SUB-004)

$ 675.00

Availability: Ships in 24 hours
Product Code: AP3-SUB-004

California Residents: Prop 65 Warning

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Accessport Support
Maps Available


Simple ECU flashing with gauge package! The new in-cabin mountable Accessport V3 has a large, full color, higher 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.

Warning! Installation of this Accessport over anything other than OEM or COBB software may result in ECU/TCU failure. Please contact COBB Support if you have any questions.


The Accessport is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your Subaru. 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.

Subaru Accessport V3 (AP3-SUB-004)
  • 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

Subaru Accessport Features:

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.

Auto On/Off Detection:  This feature, when enabled, allows the Accessport to power on when the vehicle is detected to be running and shut down once the engine has been turned off.

Accesstuner: Create custom calibrations for your vehicle using Accesstuner software! For modifications beyond COBB Stage Power Packages, custom tuning may be required. For customers interested in doing that themselves, completing a training course will be required prior to downloading the software.

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

Subaru Specific Features:

Realtime Tuning
Changes can be made to the map in realtime, while the engine is running. Greatly speeds up the tuning process and allows quick changes to powerful features like Lauch Control, Flat Foot Shift, and map switching.
** Not available for 14-15 Subaru Forester XT models

Adjust Idle
Adjust engine idle on the fly to compensate for aftermarket accessories such as light weight flywheels and upgraded cams. Separate Accessport menus allow for idle speeds to be adjusted for A/C ON and A/C OFF conditions.

Adjust Timing (STI Only)
Globally reduce timing on the fly to compensate for bad pump fuel.

Flat Foot Shifting
Keep the throttle on the floor during shifts and maintain boost between gears with this customizable RPM setting. 
** Not available for WRX CVT or Forester XT.

Launch Control
Set RPM threshold for performance launching the car from a stop. Builds boost and generates instantaneous horsepower off the line. 
** Not available for WRX CVT or Forester XT.

Customer Photos

Subaru Accessport V3 (AP3-SUB-004) is rated 4.8 out of 5 by 340.
Rated 5 out of 5 by from 2016 FXT Bought this during the Black Friday Sale. I had a bit of trouble plugging in the connector to the port, first three times it woudl not connect. You think it's connected, but you have to take it a bit further and really push it in hard. I thought i almost broke it. Since I loaded the Stage 1 93 Map, the power delivery is much smoother and earlier, provides much more usable power at the low end. There is no more power surge at 4k. It used to be ...nothing nothing nothing ... OH SNAP! now it's more like it starts pulling right away and pulling all the way to redline. On my daily commutes I've also gotten gains up to 29.4mpg.
Date published: 2018-12-18
Rated 4 out of 5 by from 2015 wrx accessport So i have had a 2010 wrx before and had an accessport and many other mods but this difference on this product is more on the stability and ease of driving the vehicle, the gas pedal was very touchy and boost response was All over, but now after adding this its has made the starting from 1st gear and low gas mileage shifting so much smoother. The boost response is better and doesnt even tickle boost unless you want it to. Im sure the gas mileage will go up from my already 26.7 mpg. As far as power, it has gained some power at the low end which im very pleased with but havent any hard time on the car to let you know about higher end power ranges
Date published: 2014-07-25
Rated 5 out of 5 by from First Impression I just installed the 93 Stage 1 OTS map on my 2015 WRX this morning. The installation was seamless and only took a few minutes. I drove it to work, mostly on the highway, and got 39.6 mpg over the 22 mile trip. The car is definitely easier to drive smoothly. The power delivery is much smoother and more linear than stock. The stock vehicle had a couple (extremely annoying) points it the power band that felt like I was lifting off the throttle under acceleration. I haven't pushed the car since the tune so I can't comment on the power increase, but, in my opinion, the driveability and fuel economy improvements alone are worth the price.
Date published: 2014-08-18
Rated 5 out of 5 by from Very impressed Have to admit COBB did their homework on this tune. I have about 7000 miles on my WRX and this tune completely changes how you drive it. It’s so more REV happy and just climbs up to redline without falling on its face like in the stock settings. Also noticed it makes the car more drivable for beginners with the change in throttle response. Subaru always makes their cars very sensitive on how lightly you apply the gas. Maybe Subaru does this to make their cars feel faster IDK. Just now I feel like it will be easier to teach my wife how to drive stick with the COBB tune. Would defiantly recommend this product to any WRX owner.
Date published: 2015-02-19
Rated 5 out of 5 by from Makes the STI more drivable I have been running the 91 octane map for the last week and could not be happier with the Accessport. The factory S# setting drove me nuts with how twitchy the throttle was. After installing the Accessport the throttle modulation is MUCH better in all modes. The other major thing the Accessport fixes is the dramatic drop in power right before redline. The "I" mode works great for around town when you don't need all the power from the car. There is a noticeable increase in power with the Accessport installed but the major improvements are with the drivability of the car.
Date published: 2014-08-03
Rated 5 out of 5 by from Significant increase in performance... I purchased the Cobb Accessport for my 2016 WRX CVT about a month ago... Currently my setup consists of: Nameless Muffler Delete Exhaust and Apexi Drop In Filter... The stock tune from the factory was very inconsistent with peaks and dead spots when accelerating... It also created a jerky ride that some have mentioned... Since the addition of the Accessport, it has transformed my car... Now it's fairly quick with lightning shifts... The peaks and dead spots are now gone... And its very linear and robust for most spirited driving. By far the best performance upgrade so far... Thanks Cobb...
Date published: 2016-09-22
Rated 5 out of 5 by from Does what it says on the tin. If you're looking at one of these you already know what it does and why you want it. It does exactly what you expect it to and there are no downsides or warnings required. Install was dead simple from actually installing in the vehicle to flashing maps. Product came with everything I needed. Had some difficulties ordering and support was super responsive and helpful. Oh, and flashing a Stage 1 map fixed the super dumb WRX accelerator pedal mapping and hugely ironed out the entire driving experience. I don't really plan on installing much in the way of mods for quite a while, but it was worth it just for that.
Date published: 2016-12-05
Rated 2 out of 5 by from Not good for cvt The Cobb system is brilliant and does what it says it will do. Interface is clear and you can get into all the technical info you ever wanted. However with a cvt wrx the overall driving experience reduces. Straight line performance might be faster but take up from 0 is very slow compared to stock . The fun kick back you get in the seat disappears as everything is smoothed out through 'gears' . Drilling down gears manually as you come to corners also is not the same as the new mappings do no hold the engine back as well and it becomes a more muted experience. I believe it still and is a great product for manual but for me it did not work in a cvt.
Date published: 2016-09-15
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