How to Get Started With ATLAS
Install, connect, log, read, then flash - in that order, with the flash last for a reason.
Verdict
Install ATLAS, buy a supported adapter, datalog your stock car first, save a backup of your factory file, and put the car on a battery charger before your first flash. Flashing is the last step, not the first.
What you need before you start
The hardware list is short. A laptop running Windows, Mac or Linux, the free ATLAS software, and a supported OBD adapter. That is genuinely everything required. Adapter choice deserves a moment because the options differ more than the price suggests. The OBDX Pro VX is the newest supported option and connects wirelessly over Bluetooth or WiFi, which is a real convenience when datalogging on the move. The Tactrix OpenPort 2.0 is the traditional wired choice and is what most Subaru tuning documentation assumes, though it has been listed as out of stock. The OBDLink EX is a wired option that works and is noted as slower. Various ELM327 adapters connect over serial through a driver built into ATLAS, and quality varies enormously between clones. Speed matters because reading and flashing are bulk data transfers. A slower adapter means a longer flash, and a flash is a process you want to complete promptly rather than linger. One item that is not on the official list but belongs on yours: a high-amperage battery charger. It is the difference between a routine flash and a recovery job. Before anything else, check the ATLAS documentation for your exact model year and transmission. Support covers the VB run from 2022 through 2026 in both manual and automatic form, but what is exposed and proven can differ between a 2022 manual and a 2026 automatic, and the documentation is the authority for your specific car.
Related Questions
Community FAQ
tuning
What do I need to use ATLAS on my 2022+ WRX?
A computer running Windows, Mac or Linux, the free ATLAS software, and a supported OBD adapter. That is the entire hardware list.
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tuning
What OBD adapter should I use with ATLAS on a 2022+ WRX, and can I use an OBDLink?
Yes, an OBDLink works, but it is slower. The OBDX Pro VX is the current fast wireless option, the Tactrix OpenPort 2.0 is the traditional choice but has been listed out of stock, and various ELM327 adapters work over serial.
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tuning
Can I datalog my WRX with ATLAS without flashing a tune?
Not on current Atlas releases. Beginning with Atlas 2026.1, datalogging requires a non-factory custom calibration flashed directly by Atlas; check the documentation for your installed version before connecting or flashing.
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tuning
Should I use a battery charger or tender when flashing my WRX with ATLAS?
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Related Guides
tuning
WRX ATLAS Datalogging Guide
Logging everything teaches you nothing. Five parameters answer most real questions.
Read guide →
tuning
ATLAS Flashing and ECU Safety Guide
Two things cause almost every failed flash, and both are entirely preventable.
Read guide →
tuning
ATLAS Tuning Guide for the 2022+ WRX
Free, open-source, and genuinely deep. The complete picture of what ATLAS does and who it suits.
Read guide →
