Subaru 2015-2020 WRX CVT CCFv2 OTS Maps
Earlier this year, with the release of Accessport tuning support for the 2020 Subaru WRX CVT, we launched our first subset of Off The Shelf (OTS) Maps for the CVT WRX using our 2nd Generation COBB Custom Features (CCFv2) ECU type. Historically, COBB’s OTS maps have been based upon the standard ROM and did not take advantage of COBB custom features or updates from Subaru that were integrated into the CCFv2 ROMs.
We’re excited to officially release 2015-2020 Subaru WRX CVT OTS Maps using a CCFv2 ECU definition file. The following v360 files have all been updated to take advantage of CCFv2 features such as MAF Simple, IAT alternate source, and Closed Loop Fueling and Learning which provide a much more consistent and reliable calibration. This ECU type also includes the latest Subaru ECU logic/calibration for the DIT WRX, including battery life improvements for 2015-2017 WRX. Since their initial release at v350, 2020 WRX CVT maps receive minor updates to boost control, boost limit, ignition timing air temp correction, and fueling. Other changes of note are the addition of High (HWG) and Low (LWG) Wastegate files. These can be used on cars that either fall short or overshoot target boost, respectively.
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To access these map files, simply update Accessport Firmware using Accessport Manager (to firmware version 1.7.3.1-17014 or newer) or download them from cobbtuning.com/maps.
Once firmware has been updated, select Tune on the Accessport and then choose Restore OTS Maps as shown below. Once that step has been taken, proceed to Tune, Change Map, and Reflash. You should be provided with the option to flash a v360 map at that time.
Power Gains
The dyno chart below is applicable to all 2015-2020 WRX CVTs using v360 Off The Shelf Maps. Cars utilizing 93 octane fuel can expect to see peak power gains of +7% HP and +13% TQ and maximum gains of +19% HP and +19% TQ. Peak gains are measured as the difference between the highest points of the two plots. Maximum gains are measured as the largest gain at any single point between the two plots. The addition of the Big SF Intake will net marginal gains, approximately 2-3% additional HP and TQ. Power output on cars using the 91 octane variant with quality 91 octane fuel will be approximately 5% lower.
*For a complete explanation of each Off The Shelf Map for the 2015-2020 WRX CVT, visit our Map Notes Page.
Please contact our support team with any questions.
Phone: 866-922-3059
Email: [email protected]
“Power output on cars using the 91 octane variant will be approximately 5% lower”. This means instead of a 7% peak HP gain expect 2% , or, instead of a 7% peak HP gain expect about 6.6% (5% lower gain).
It’s actually likely to vary based on quality of the 91 octane fuel used. Those in Arizona, California, and Nevada are likely to see closer to that 2% gain while those in other areas of the country with 91 octane will likely see something between the two.
Marshall@COBB
Will these new maps eventually come out for the 2014-2018 FXT CVT?
We do not currently have plans to offer CCFv2 ECU features for the Forester XT.
Marshall@COBB
I have A 2018 Subaru wrx 2.0 with automatic( Cvt ) I have a Cobb cold air intake and a nameless cat back exhaust with muffler delete, I’m looking for a more aggressive sound and I would be happy with rumble or burble sound what should I purchase? My guess would be stage 2 ?
Hi Michael,
With those modifications you’d use the Stage 1+Big SF Maps.
Kyle@COBB
I have a Cobb SS Catback exhaust & Big SF Intake installed now so which map should I use. I usually gas up with 93 Oct fuel. Just in cases where I cannot get 93 I use 91. Thanks in advance !
Hi Addy,
You’d use the Stage1+Big SF map. You can use the 93 version with 93 in the tank and 91 with 91 in the tank.
Kyle@COBB
Would a 2019 WRX CVT with the Redline Stage 1 Power Package use the same ots maps as the Stage 1 Big SF tunes?
Hey there, it does not. The Big SF and Redline intakes utilize different MAF calibrations and thus have different OTS maps. They are indicated by either “+Redline” or “+BigSF” in the map file name.
Marshall@COBB
Is there not a stage 2 map for the CVT WRX?
We will be releasing our NexGen Stage 2 Packages and OTS maps for 2015-2021 WRX CVT shortly!
Marshall@COBB
I was wondering if we could talk about what I can do to my car. I have a 2017 CTV WRX Premium I just bought and, was thinking about upgrading my ECU to a stage 1?
Hey Nicolas, we have options available for your 2017 WRX CVT! Anything from stock with an Accessport and Stage 1 map, to our new NexGen Stage 2 Power Package and map. You can find everything we offer for your car at the link below.
https://www.cobbtuning.com/2017-subaru-wrx-sedan-cvt-usdm-s
Marshall@COBB
Hello there my name is Alex. I just order my Cobb Access Port through Subispeed. So this Cobb AP V3 I will be install it to my 2020 Subaru WRX CVT. But I do have one question. I already install Access port Manager on my laptop Windows. But do I have to connect my Cobb AP on my computer laptop for anything updates. Or can I just go head in install and connect my Cobb AP on my 2020 WRX CVT. But on my Cobb AP V3 it already says that MAPS ARE PRELOADED But do I still have to connect my Cobb AP to my laptop to get more updates or something. And I think I’m going to select Stage 1 93 V360 PTM. Since that’s the gas type I use on my WRX 93.
Hey there! Support for your 2020 WRX CVT has not changed in a bit, so there likely are not any new updates to apply via Accessport Manager. You are safe to install the Stage 1 93 map as it is without any updates.
Marshall@COBB