Custom ECU calibration for the Subaru Impreza WRX STI, mapped on a dyno under knock detection and wideband AFR monitoring.
What’s included
What each package covers
Full remap – includes dyno time: a calibration built from your original ROM on the dyno, with the dyno time included. Nothing to settle up at the end.
Tuning only: the same calibration work, at a dyno you book and pay for. Travel is quoted per job.
Revision to our map – includes dyno time: changes to one of our own calibrations with the dyno time included, for when the change needs measuring.
Revision to our map – at a dyno you arrange: the same revision work without dyno time, for a change that does not need a run.
A map somebody else wrote is not a revision — we start from your original ROM and quote it as a full remap.
What you get
A calibration built for your car, in iterations: the vehicle runs under load while knock activity and air-fuel ratio are watched live, the tables that need work are changed, and the same test is run again. That loop is the job. A single pull and a saved file is not a map.
Full read of your existing ROM before anything is changed, kept as a restore point
Fuelling, ignition, boost, cam timing and load calculation as the build requires
Knock and AFR monitored throughout, on the tools rather than by ear
Before and after figures from the same dyno on the same day
The finished map, the datalogs behind it, and a written summary of what changed
Which option you need
Full remap – a calibration built for your car from your original ROM, on the dyno, under knock detection and wideband AFR. Dyno time is included in the price, so there is nothing to settle up at the end.
Tuning only – the same work, at a dyno you book yourself. Useful if your car is already going somewhere with rollers, is not road legal, or you would rather not trailer it across the country. We travel, and travel is quoted per job; the cell is yours to pay for.
Revision to a map we wrote – changes to one of our own calibrations, after a hardware change, a fault, or a season's running. Take it with dyno time when the change needs measuring, or without when it does not – a fuelling trim or a limiter change often does not.
A map somebody else wrote is not a revision. We start from your original ROM and quote it as a full remap: picking up unfamiliar work without knowing what was changed or why takes as long as doing it properly, and usually longer.
Tooling
Mapped on ecuEdit. There is no per-vehicle licence to buy, so what you pay is the tuning and the dyno.
What we need from you
The car, with any hardware changes finished and running
A list of what has been changed, honestly – cams, injectors, turbo, intake, exhaust
Any existing map or ROM you hold, and who wrote it
Fresh fluids and a healthy engine: mapping does not fix mechanical problems, it finds them
Not sure the hardware is right yet? That conversation is free – talk to us before you book the dyno.
Know when your engine is covered
We develop induction kits one engine at a time — Honda K20 and Peugeot GTi6/Mi16 so far, with more in build and a bespoke route for anything else. Subscribe and we will tell you when a kit lands for yours, and send the sizing and fitment guides we write along the way.
