CUSTOM REMOTE TUNING
Custom e-tuning
$400 for most setups
Eight revisions for most e-tunes, with compatibility and scope agreed before payment.
Explore custom e-tuning ↗TUNED BY KEITH / CUSTOM TUNING & MAPS
Your vehicle.
My experience.
A tune should make the whole car better to drive. Work directly with me on response, drivability and usable power—from Subaru e-tunes to EcuTek and standalone projects.
Find my tuning service ↗Meet Cinderelli, the orange 2024 WRX from my AWD Tuning background. Explore the build →
Tuning since 2005More than 20 years of hands-on experienceWork directly with KeithSetup review, calibration and feedbackStreet to competitionBuilt around how you use your car
FIND YOUR TUNING PLATFORM
Find the right route for your vehicle.
COBB Accessport
Explore model and trim coverage for Subaru, Mazda, Ford, Nissan GT-R, Toyota trucks/SUVs, Volkswagen, Audi, Honda, Acura and other supported applications.
View COBB coverage ↗EcuTek
Nissan R35 GT-R, 370Z and Z/400Z; Infiniti Q50/Q60 VR30; Subaru BRZ; Toyota GR86, GR Yaris, GR Corolla and supported B58 GR Supra applications.
View EcuTek coverage ↗Open-source tuning
EcuFlash, RomRaider and Atlas inquiries are reviewed against your exact ECU, ROM definitions and interface.
Review my open-source setup ↗BRZ: both generations
Explore EcuTek tuning for the first-generation FA20 and second-generation FA24 BRZ.
BRZ tuning guide ↗Exact year, engine, transmission, market and ECU support are confirmed before payment. Hardware, licenses and tune files are specific to the selected platform.
FIND YOUR CUSTOM E-TUNE
Driving a WRX or STI?
These dedicated guides explain the service, preparation and logging requirements for your Subaru.
2022+ Subaru WRX e-tuning
A custom tune for your VB WRX.
$400 for most setups · Eight revisions
View tuning details ↗2015–2021 Subaru WRX e-tuning
Your FA20 WRX, tuned as a complete setup.
$400 for most setups · Eight revisions
Explore this service ↗2002–2014 WRX & 2004–2021 STI e-tuning
Subaru roots. A tune for your particular EJ.
$400 for most setups · Eight revisions
Explore this service ↗STANDALONE ENGINE MANAGEMENT
Explore your ECU.
Understand the tuning process, what information to prepare and the builds behind my experience. Standalone setup and calibration are quoted individually.
Link ECU tuning
Subaru flex-fuel builds and LS-swapped Nissan experience, with the calibration built around the installed system.
View Link tuning ↗Emtron tuning
A capable ECU is only the beginning. I work through the engine, sensors and control strategy to develop a car that responds predictably to the driver. My Emtron work includes Subaru development and street-oriented performance builds.
View Emtron tuning ↗Haltech tuning
A standalone project brings together wiring, sensors, engine hardware and calibration. I help define what needs checking before tuning, then develop the setup around its fuel, mechanical condition and intended use.
View Haltech tuning ↗MoTeC tuning
MoTeC tuning starts with understanding the installed ECU and its configuration. I review the engine, fuel system, sensors and available control strategy before developing the calibration around the way the vehicle will be used.
View MoTeC tuning ↗IN-PERSON TUNING · WORLDWIDE
Prefer time on the dyno?
Request a dyno session for your vehicle or host me at your shop. Worldwide travel visits and coordinated dyno days are quoted around your location, vehicles and facility.
Explore dyno & travel tuning ↗FROM SETUP TO FINISHED TUNE
One conversation. A clear plan.
1. Send your setup
Tell me about your vehicle, hardware, fuel and goals. I confirm compatibility and whether remote tuning, a dyno session or setup work is the right next step.
2. Agree on the scope
Your quote confirms price, revisions, equipment and licensing. Once approved, I send a QuickBooks invoice. Eligible invoices may offer Affirm; available terms appear at payment.
3. Tune and refine
After payment and receipt of the required information, I send instructions for files, logging and feedback. We work through the agreed revisions using your inquiry reference.
Most custom e-tunes are $400 with eight revisions. A $50 base map is a starting calibration for approved use; follow-up tuning is separate. Standalone work, equipment and unusual combinations are individually quoted.
Request a setup review ↗DELIVERY & REVISIONS
Usually same day.
Within one business day.
Initial map delivery and each agreed tuning revision are usually completed the same business day and will not exceed one business day once everything needed is received.
- Initial delivery: the clock starts once I have approved your setup, payment is confirmed and all required vehicle details and files have been received.
- Revisions: the clock starts when I receive the complete requested datalogs and feedback. Send them in the same email thread with your inquiry reference.
- Business hours: Monday–Friday, 8 a.m.–6 p.m. Pacific. Requests received outside these hours begin the next business day; weekends are not business days.
This turnaround applies to each file delivery or revision, not completion of the entire tuning process. Time spent collecting logs, supplying missing information or resolving vehicle issues is separate. I’ll explain what is needed if work cannot proceed.
Most $400 custom e-tunes include 8 revisions. Hardware or fuel changes, diagnostic work and additional revisions may require a revised scope agreed before work continues.
BEFORE ORDERING
Request a setup review.
Tell me what you drive, what you want to improve and which service interests you. Unsure about the tuning platform? Choose “Help choosing.”
Prefer a conversation? Message Keith on WhatsApp.
PREPARATION & FUTURE PRODUCTS
The details when you need them.
Review the information relevant to your setup, or ask me to help identify what you need.
WRX/STI wideband logging and flex-fuel questions
STI & EJ WRX / WIDEBAND FAQ
Record the mixture.
Understand the result.
Why do I need a wideband if my Subaru already reports AFR?
A factory AFR reading or commanded fuel target is not a substitute for the external measurement I request for your tune. I use the wideband record to assess actual mixture with engine load, RPM and the rest of the log. Factory sensor behavior and the available channels vary by ECU and ROM.
Is an AFR gauge or a video of the gauge enough?
No. A gauge is useful for the driver, but I need recorded measurements that can be related to the engine log. A video or screenshot does not replace that data. Depending on the setup, this may mean an approved ECU input, a supported serial connection, or a separate logger with an agreed synchronization procedure.
Will a plug-in harness put wideband data into my COBB Accessport log?
Do not assume it will. iWire specifically identifies a post–Green Speed limitation for its AEM kit's ECU-input logging approach. That does not mean an external wideband cannot record independently; it means the harness, ECU input and current tuning software must be checked together. I confirm a workable method before you purchase a kit. See the COBB Green Speed guide and iWire's compatibility notice.
Which model years does the loggable wideband option cover?
The planned option is for 2017-and-earlier WRX/STI applications. This EJ section covers the 2002–2014 WRX and 2004–2017 STI within that range; 2015–2017 WRX applications need their own FA-platform fitment review. For 2018+ vehicles, contact me for a separate logging plan. Model year alone does not verify a harness or software connection.
Can you support my pre–Green Speed flex-fuel kit?
I review both existing legacy COBB configurations and compatible open-source/standalone setups. Send the exact kit, wiring, ECU/ROM and software details first. Legacy hardware support is not a promise that a current COBB software version can edit or use every older configuration.
Can I use Innovate or Zeitronix?
Yes, subject to approval of the exact controller and logging setup. Innovate LC-2 provides programmable analog outputs and a serial logging path. Zeitronix Zt-3 offers a configurable analog output and serial datalogging. Those features do not automatically establish compatibility with your Accessport, ECU input or logger. Confirm the complete kit, including its matching sensor and required interface.
What needs checking before the first full-load log?
Follow the manufacturer's installation and calibration instructions. Verify sensor/controller compatibility, power and grounds, sensor placement, warm-up, absence of exhaust leaks and the exact output scaling. Send a sample log first so I can check that the recorded value agrees with the controller/display. Do not substitute another brand's voltage-to-AFR formula.
Should I send AFR or lambda?
Use the units requested for your tune and identify them clearly. AFR displays depend on their configured fuel scale; do not assume an AFR number is directly comparable across different fuels or device settings. Keep the controller, gauge and logger settings consistent.
Do I remove a factory oxygen sensor or disable a fault code?
Do not remove required emissions sensors or disable diagnostics to make a logging kit work. Ask me and your installer to confirm a suitable sensor location and supported data path for the vehicle. An adapter harness does not establish emissions compliance.
What if I cannot provide usable wideband data?
Full-load remote fueling work waits until we have an approved measurement and logging method. We can discuss installation help or a dyno session with suitable instrumentation. Do not perform a pull just to see what happens; follow the instructions issued for your specific map and collect data only in appropriate, controlled conditions.
Planned $150 WRX OTS maps
OFF-THE-SHELF MAPS / $150 EACH
Choose your WRX.
My initial OTS catalog focuses on two WRX generations. Each map will specify its exact vehicle, transmission, hardware and fuel requirements.
VA / 2015–2021
WRX OTS maps
$150 per map
For the 2015–2021 Subaru WRX. This category is separate from the STI; WRX and STI maps are not interchangeable.
- ETS kit — $150
Exact kit and required parts to be specified. - Perrin bolt-ons — $150
Exact parts package to be specified. - COBB bolt-ons — $150
Exact parts package to be specified.
Catalog in preparation. Fuel and transmission coverage will be confirmed for each package before release.
Ask about your VA WRX ↗VB / 2022+
WRX OTS maps
$150 per map
For the VB-generation Subaru WRX. Confirm the exact model year, market and transmission; “2022+” does not promise support for every future model.
- ETS kit — $150
Exact kit and required parts to be specified. - Perrin bolt-ons — $150
Exact parts package to be specified. - COBB bolt-ons — $150
Exact parts package to be specified.
Catalog in preparation. Fuel and transmission coverage will be confirmed for each package before release.
Ask about your VB WRX ↗Maps are not available to purchase here yet. An OTS map is preconfigured for a defined setup; individual datalog-based revisions belong to the custom e-tune process.
Planned wideband hardware packages
PLANNED HARDWARE / NOT YET FOR SALE
A complete wideband
logging package.
For 2017-and-earlier WRX/STI applications, I plan to offer Innovate- or Zeitronix-based packages that bring the controller, matching sensor, vehicle-specific wiring and logging instructions together. The aim is a clearly documented installation and useful data from the start.
Innovate-based package
LC-2 is a candidate for a controller-based setup. Exact controller, sensor, display options and logging interface will be selected and validated before release.
Manufacturer LC-2 documentation →Zeitronix-based package
Zt-3 is a candidate for AFR/lambda logging with optional display arrangements. Exact hardware and compatibility will be documented for each package.
Manufacturer Zt-3 documentation →Pricing, availability and fitment are not finalized. No preorders or universal plug-and-play claim. Before sale, each kit needs a verified vehicle/ECU/software matrix, installation instructions, output scaling, a sample-log check and a complete parts list. These are planned Tuned by Keith offerings, not an announced iWire partnership.
Ask about a wideband package ↗Affirm payment information
PAYMENT OPTIONS
Pay over time
with Affirm.
After I confirm your setup and service, you can apply to pay over time with Affirm on an eligible QuickBooks invoice. Choose Affirm at invoice checkout when it is offered, then review the available payment plans before you decide.
Payment options are subject to eligibility and approval. Rates, terms and any applicable fees are shown during checkout. Availability can vary by invoice and customer; financing is not guaranteed.
Your tuning scope and delivery process stay the same: work begins after your setup is approved, payment is confirmed and the required information is received.
Discuss my setup ↗