![]() ![]() The Cobb Tuning Accessport can flash the factory ECU with any of the different tuning maps that can be downloaded from the Cobb Tuning website. The only factory hardware you’ll reuse is the two 17mm bolts that mate the catalytic converter to the exhaust. The exhaust includes all the necessary hardware for installation, including new gaskets, nuts and bolts. A little spritz of WD40 or any other spray lubricant on the exhaust hangers and the bolts holding the exhaust together helps to expedite the disassembly and removal of the stock system. The stainless steel ARK Design Superflow Dual Exit exhaust installed quickly and easily, taking a mere 30-45 minutes to install, once the factory exhaust cooled down enough to be handled. We CAN still tune flex fuel on opensource for the 2002-2005 WRX and EVO X.Since the Cobb Stage-1 ACN91 map accommodated either a stock or aftermarket exhaust, we installed the ARK Design exhaust next.We can NOT tune flex fuel anymore, straight E85 tunes make the same power as flex tunes.We can NOT disable any check engine lights, no power was gained from this anyways.We CAN still tune cars with Accessports.These will make the SAME POWER as a flex tune, you just have to flash a new map a few times a year. You will get a pump gas tune along with 2 E85 tunes, a summer and winter blend to account for the changing ethanol content. Instead of flex you will have dual tunes. People have been running E85 long before that. Flex fuel for Subaru has only been around since 2015. We can tune E85 like we did before flex fuel was a thing. We have been retaining these items for a long time now and the cars we tune still make big power with them installed. The rest like EVAP, EGR, air pump gain no power at all. We just have to do it in a way that doesn’t remove parts that didn’t add power anyways. We can still tune your car with an Accessport. They have already released the 2015+ WRX J-Pipe and I’m sure the downpipe isn’t far behind. Companies like GrimmSpeed are working on emissions compliant exhausts that won’t throw any check engine lights. While we can no longer tune flex fuel, that doesn’t mean you can’t still run E85, upgraded turbos, upgraded fuel injectors, and downpipes. There is unfortunately no ETA on when that will be available. ![]() Cobb says they are working on updating how flex fuel works so it can be fully emissions compliant. Even though it was done in a way that still allowed the TGV’s to still be fully functional, some check engine lights had to be turned off, thus tampering with how the emissions system functions. This was done because utilizing these custom sensors was overriding the signals from the rear O2 and TGV’s. On April 18th, Cobb released an update for the pro tuning software that removed the features that allowed us to tune flex fuel, add custom sensors like fuel/oil pressure, and disable any DTC (Diagnostic Trouble Codes / Check Engine Lights). The best advice I can give at the moment is to just leave your car how it is and enjoy it. If you need any updates or decide to add more parts, that is where you will run into trouble. You are not going to lose your tune and it won’t be automatically updated and remove flex fuel. ![]() If you are currently tuned on flex fuel with an Accessport you have absolutely nothing to worry about. What does Cobb’s Project Green Speed update mean for you? We have to start doing this in a way that works with the current laws or there may be a day we won’t be able to put any aftermarket parts on our cars at all. After the update when we save the tune it will automatically revert back to stock, the tables for flex/fuel pressure sensor and re-enable all the check engine lights.***Īs much as this all sucks it needs to be done so you can keep modifying your cars. After that anyone that has been previously flex fuel tuned or had any codes disabled when tuned, we will not be able to update your tune. ***On May 2, 2022, our tuning program gets automatically updated by Cobb. We have had a lot of inquiries over the last 24hrs about Cobb’s recent update. More info can be found in our blog post here. A new style of flex fuel is available from Delicious Tuning that works with Cobb’s Green Speed updates. ![]()
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