Custom calibration
Discuss fuel, ignition, boost and drivability refinement for your supported setup. The calibration plan starts with the hardware, fuel and intended use.
COBB ACCESSPORT / CUSTOM CALIBRATION
COBB custom tuning.
Your setup comes first.
Work with Keith Fields on custom ECU calibration for a supported COBB platform. Subaru WRX and STI are a core focus, with remote e-tuning and datalog review available for suitable vehicles.
Ask about COBB tuningSUBARU & OTHER SUPPORTED PLATFORMS
Choose the tune
for the car you actually have.
Looking for a Subaru WRX e-tune, STI custom tune or help with your COBB Accessport? Share the exact model year, engine, transmission, market and device part number. Your modifications and fuel help determine the right approach.
Forester XT, Legacy GT/XT, Outback XT, Ascent and BRZ owners can also inquire about their tuning options. Availability depends on the exact vehicle and tuning platform. Crosstrek and base Impreza are not advertised as COBB-supported applications.
Owners of other COBB-supported vehicles are welcome. Keith confirms vehicle compatibility and the available custom-tuning service before accepting work. A manufacturer's name alone does not establish support.
What we can work on.
Remote e-tuning
Follow the agreed process for flashing and recording datalogs, then send requested data for review. Collect data only in a safe, legal environment.
Datalog review & revisions
Review vehicle behavior and determine the next step. Revision scope, follow-up support and any changes to hardware or fuel are agreed before work.
GETTING STARTED
From inquiry to calibration.
1. Confirm your setup
Send vehicle details, Accessport part number, modification list, fuel and current concerns. Keith confirms fit, required equipment, pricing and availability.
2. Agree on the process
Discuss whether remote e-tuning, diagnostics or a dyno session suits the project, and what information is needed before work begins.
3. Review & refine
Use the agreed logging and revision process to assess vehicle behavior and refine the calibration. Mechanical issues may need attention first.
YOUR QUESTIONS
Before we get started.
Can I buy any Accessport and get a custom tune?
No. Device compatibility, vehicle specifications and available tuning support must be confirmed first. Send your setup before purchasing equipment.
Do you offer a fixed number of revisions or a guaranteed power gain?
Most e-tunes are $400 with 8 revisions. Keith confirms the scope for your setup before payment. Results depend on the hardware, fuel, mechanical condition and validation process; there is no universal power figure for every setup.
What if I change parts after tuning?
Contact Keith before changing hardware or fuel. The existing calibration may need revision, and further work is scoped separately.
WORK WITH KEITH
Tell Keith about
your COBB setup.
Start with your vehicle and device details. We’ll confirm the fit before you commit.
Discuss your buildOr email keith@acalibrations.com.
WRX and STI e-tunes, pro tunes and custom tuning
Owners often call a custom Accessport calibration an e-tune or pro tune. An e-tune uses an agreed remote datalog and revision process; a dyno tune takes place with the vehicle on a dyno. Tell Keith your model year, modifications, fuel and Accessport details so he can confirm compatibility and the right tuning approach.
Subaru tuning support here refers to compatible COBB applications, not every Subaru model. See the tuning consultation checklist before getting started.
E-TUNES & MAPS
Custom e-tuning with Keith.
$400 with 8 revisions for most setups. Confirm your vehicle, hardware and fuel before ordering.
Wondering what COBB Green Speed means for your build? Read the practical guide.