TUNED BY KEITHBY CALIBRATIONS LLC

ECUTEK / CUSTOM TUNING

Your platform.
Your driving experience.

I offer EcuTek calibration for supported Nissan, Infiniti, Subaru and Toyota platforms. I start with your exact vehicle, hardware and fuel, then agree on the tuning approach around your goals.

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Find your model and engine.

Nissan EcuTek tuning

R35 GT-R, 370Z and the VR30-powered Nissan Z (often searched as “400Z”). These are distinct platforms with their own ECU, transmission and calibration requirements. GT-R NISMO and Z NISMO inquiries require an exact model-year and ROM check; trim names alone do not confirm compatibility.

Infiniti Q50 / Q60

VR30DDTT 3.0-liter twin-turbo applications, including Red Sport inquiries. Send the engine and trim: Q50/Q60 badges also appear on other powertrains, so this listing does not imply coverage for every engine or hybrid variant.

Toyota GR tuning

GR86 (FA24), GR Yaris and GR Corolla (G16E-GTS), and supported GR Supra 3.0 B58 applications. Supra ECU production date, software and any unlock requirements must be checked; do not assume every A90/A91 or 2.0-liter model is included.

Subaru BRZ

First-generation FA20 and second-generation FA24 BRZ tuning. Visit the dedicated BRZ guide for preparation, logging, equipment and package details.

Explore both BRZ generations →

These are application families, not blanket support for every year, region, ECU or transmission. I confirm current programming access and custom-tuning support before payment.

COBB or EcuTek?

Some vehicles, such as the R35 GT-R, have more than one tuning route. An Accessport license or map is not an EcuTek license or map. Tell me which equipment and calibration you already have before buying anything.

My COBB guide lists Mazda, Ford, Nissan, Toyota, Volkswagen, Audi, Honda and other supported applications by model. Older Skyline R32/R33/R34 projects are discussed separately around the installed ECU; see the Haltech R32 archive.

Plan the complete package.

Send your year, model, trim, engine, transmission, market, modifications, fuel and current tuning-device details. I’ll confirm equipment, licensing, any unlock requirements, available features, pricing and revision scope in your quote.

Remote tuning, dyno sessions and worldwide travel are arranged around the project. RaceROM features, flex fuel and transmission tuning are individually assessed and are not automatically included.

Manufacturer references

Coverage reviewed October 6, 2026. The exact vehicle still needs a compatibility check.

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