PulseWidthSubaru tuning platform
Enthusiast workflow

From “is my car supported?” to “what should I do next?”

PulseWidth keeps the calibration depth, but the owner experience starts with support clarity, guided flashing, useful diagnostics, and logs that stay connected to the vehicle and tune revision.

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134
Classic calibrations

Individually mapped 2001-2006 Subaru calibrations, embedded in the app.

5
Model families

WRX, STi, Forester Turbo, Legacy/Liberty B4, and Outback H6.

200+
Log channels

Live data, datalog analysis, and full-screen digital dashboards.

0
Soldering required

Read, flash, log, and diagnose through the factory OBD-II port.

PulseWidth flash screen with pre-flight checklist: connection, battery, ROM loaded, ROM size valid, checksum valid, stock backup
Flashing runs a pre-flight checklist before a single byte is written.
PulseWidth garage view with vehicles, calibration IDs, and OBD2 auto-detect
The garage tracks every car, calibration ID, and revision.
Owner confidence path
Owner confidence path
  • Vehicle support checks before owners install or flash
  • Coverage status that separates mature support from early access
  • Plain-language tune history tied to account vehicles
  • Fast login path for returning dashboard users
Safe flashing and diagnostics
Safe flashing and diagnostics
  • Flash workflows backed by purpose-built kernels for the classic ECUs
  • Pre-flight validation, checksums, and recovery-aware guidance
  • Diagnostic trouble code and readiness workflows
  • Vehicle-aware context for relevant tools and categories
Logs, learning, and tuner handoff
Logs, learning, and tuner handoff
  • 200+ SSM and logging parameters
  • Virtual dyno and datalog analysis surfaces
  • Account-linked vehicles, licenses, ROMs, and tune revisions
  • Tuner workflow for customers who want expert help
Guided depth
Virtual dyno, diagnostics, and workflow without the spreadsheet hunt.

PulseWidth should feel approachable to the owner doing their first serious Subaru tune, while still giving experienced tuners the live logging, release tracking, and account-backed workflow they need.

Live tuning

Safety gates

Cloud workflow

Virtual Dyno details
Coverage snapshot

Impreza WRX

2002-2005

All markets. Every USDM calibration defined, with live tuning on supported cals.

Impreza WRX STi

2001-2006

JDM, EDM, and ADM models, including AVCS-equipped cars.

Forester Turbo

2001-2003

SF5/SG5 S/tb and early XT, JDM/EDM/ADM/SADM.

Legacy / Liberty B4

2002-2003

BE/BH twin turbo, including wagons and the 3.0 six.

Outback H6 3.0

2001-2004

Diagnostics, logging, and calibration access for the six.

Newer Subarus: Later ECU generations will get their own dedicated editions. We announce each platform when it is ready, not before.
Full compatibility list