Hey, why isn’t there an ACN91 tune for the 2015+ WRX and 2014+ FXT?   Great Question! With Subarus using the EJ platform, we’ve always made a variation of each OTS map for 93, 91, and ACN91 octane fuels. We want to make sure to take good care of our west coast homies despite their less...

COBB is excited to announce immediate support for the 2013 Subaru STI, WRX and Forester XT models! Owners of the latest high-performance Subarus can now attain the same level of power and control with the AccessPORT as enjoyed by previous model year owners. Our AccessTUNER software has also been updated to allow custom tuning of...

We are proud to report that we now have 82 California Air Resource Board (CARB) Executive Orders (EO’s) with many more applications working their way through the CARB EO approval process.  We remain fully committed to serving your needs by being the industry leader in delivering exciting, responsible, and environmentally compliant hard parts, performance packages,...

Project Green Speed Update (January 2022) We are proud of the progress that we’ve been making on Project Green Speed and the 57 new California Air Resource Board (CARB) Executive Orders (EO’s) that we received in 2021 bringing our total EO count to 77.  We are fully committed to serving your needs by being the...

V400 Subaru WRX, STI, Legacy, Outback, and Forester Off The Shelf Maps All Subaru Accessports are eligible for a firmware update as a part of this release.  New off the shelf maps for most supported EJ-powered Subarus and the addition of new ROM support for newer vehicles round out notable changes.  At the core of this...

Titanium Stainless Steel When it comes to performance modifications for your vehicle, modifying the exhaust system ranks at or near the top of the list.  By opening up that exhaust flow, you’re able to gain performance, but perhaps even more importantly, gain the ability to conduct a symphony with your right foot.  The exhaust sound can be...

Subaru Turbo Heatshield 2002-2007 WRX, 2004-2008 FXT, 2004-2019 STI Subaru SS Turbo Heatshield 05-09 LGT, 05-09 OBXT, 08-14WRX, 09-13 FXT Appearances can be deceiving. You might think…how important can a single piece of stainless steel with 3 little bolts be? You might also assume by looking at it, that it’s a super easy part to...

A turbocharger heat shield acts as a barrier for radiant heat produced by the turbocharger’s turbine housing. Deflecting this heat down protects key components in the engine bay which rely upon cooler ambient temperatures.  The COBB Tuning Heatshield is a replacement for the factory turbo heat shield found on most Subarus. Installing a turbocharger heat...

The bypass valve is a straightforward component that can be found in most turbocharged engines.  Its purpose is to relieve boost pressure in the intake tract when the throttle blade closes.  This is done to decrease wear on turbo and engine parts.  While this is a fairly simple task, leaks or inconsistencies in the operation of...

  In November of 2018, we launched COBB Custom Features for certain Forester XT and Legacy GT vehicles.  Until now, only certified COBB Tuning Protuners with Accesstuner Pro HL software have been able to create custom tunes using the CCF ECU type.  Today, we are excited to announce that our end-user version of Subaru Accesstuner now supports...

Nearly three years ago, we released our first true Flex Fuel conversion solution for the 2008-2014 Subaru WRX and STI.  Since then, our Subaru team has developed the same complete turn-key solutions for the 2015-2019 WRX and expanded support through the 2019 STI.  Amidst that work, we’ve been fielding a ton of requests from the...

Our Subaru team is excited to announce two major updates!  Full tuning support, including Stage Power Packages and Off The Shelf Maps, is now available for the USDM 2019 Subaru WRX (6MT Only).  Subaru Accesstuner software has also received updates and new tables/monitors for select vehicles.  USDM 2019 STI and WRX CVT owners, don’t fret. ...

Subaru’s 2018 WRX STI and Forester XT can now be tuned with the COBB Accessport!  Support for the 2018 WRX STI includes all of our bolt-on modifications and Stage Power Packages that STI owners have been using to release potential from their 2015-2017 STIs.  The 2018 Forester XT is largely the same as previous years and...

The COBB Accessport now supports the 2017 Subaru Forester XT!  A simple firmware update to the already available SUB-004 Accessport will add compatibility for Subaru’s current model year SUV.  CLICK HERE for a firmware update how-to.  Similar to previous model year support, Off The Shelf Maps are limited to Stage 1 for either 91 or 93...

First, we teased you.  Then, we taught you.  Now, we empower you. COBB Custom Features The time has come!  Subaru Flex Fuel is now available via COBB Custom Features.  Updates to the Accessport V3 and Accesstuner Pro now allow users to configure their vehicles to run a true flex fuel setup.  Gone are the days of...

The bypass valve is a straightforward component that can be found in most turbocharged engines.  Its purpose is to relieve boost pressure in the intake tract when the throttle blade closes.  This is done to decrease wear on turbo and engine parts.  While this is a fairly simple task, leaks or inconsistencies in the operation of...

  SUB-004 Accessport Firmware Update (1.7.2.0-11506) The COBB Subaru Expert Group recently pushed out a very important firmware update for 2014+ Forester XT Accessport users.  This update improves the flashing process for vehicles that are equipped with Subaru’s EyeSight technology.  Updates to the flashing process address intermittent issues with Install, Uninstall, and Change Map functions which...

Subaru Accessport Updates New Vehicle Support 2016 Subaru Forester XT Accessport support is now available!! All AP3-SUB-004 Accessports with qualifying firmware (1.7.2.0-11265 and newer) are now compatible with the 2016 Subaru Forester XT.  Support includes the same feature-set as the 2014-2015 Forester XT. Launch Mode Stage 1 Off The Shelf Maps Economy Mode Map Valet...

We’ve previously featured the first and second gen Foresters,  as well as the third gen, SH, Forester.  Now it’s time for the latest, some say greatest, Forester yet: the fourth gen SJ chassis.   The SJ Forester brought a few firsts to the platform.  Most notable were the CVT and direct injection.  New technological features like...

If you’ve owned an earlier model turbo Subaru you know that COBB is the premier provider of aftermarket tuning and hard parts.  We constantly evolve to meet new demands and strive to lead the industry.  Part of that evolution includes adding Accessport custom features to further enhance your vehicle’s ECU.  We’re happy to announce that Realtime...