EK1 Pro / Lite / Mini2 - Custom ECU Recalibration File (NO DEVICE)

Fits: Hyundai Elantra N (I30N sedan; 2024 supported), Kona N, Veloster N, Smartstream Gen4 1.6T (2021+ Elantra N Line, Kona N Line, I20N, K5 GT Line), Elantra Sport 2017–2018, Elantra Sport 2019–2020, Elantra GT Sport, Elantra GT N Line, Genesis Coupe 2.0T, Genesis Coupe 3.8L, Veloster Turbo, Veloster Turbo 2; Kia Forte Turbo, Forte GT, Stinger 2.0T, Stinger 3.3TT, Optima Turbo; Genesis G70 2.0T, G70 3.3TT.

Turnaround

Expect your tuned file within 24–48 hours on weekdays, from when we receive your file. A file that arrives late Friday comes back Monday or sooner.

What this is

Custom ECU recalibration files from N75 Motorsports for an EK1 Pro, Lite or Mini2 flashing device you already own; the device is not included. Files move through our tuning portal, so this works anywhere in the world, and we tune to the octane you run. Calibrations are developed in Canada on our own Veloster Turbo 2 1.6T, Veloster N 2.0T and Elantra N before they go on a customer car.

Stages and features

Any stage is available for any vehicle on the list, including anti-lag, flame and track tuning, at the same file price; stuffed (hybrid) turbo tunes too. Per-stage power and required mods are on each vehicle's own ECU tuning listing. Spark plugs are required on all cars; we suggest colder plugs and a performance intake for the added boost. On the 2024–2026 Elantra N, Stage 1 needs only an intake and heat range 9 spark plugs.

Every feature below is included at no extra charge on EK1 Pro / Lite files.

360 whp / 380 ft-lb on a Veloster N DCT (Dynojet, SAE correction).

Stage 3 — 357 whp on our Elantra N 6-speed test car (Dynojet, STD correction).

Options explained

• Add 3 Revisions (3 additional files): three more tuned files built from your datalogs, discounted when ordered with the tune; added later they cost more. Suggested for stuffed-turbo and big-turbo builds.

How it works after you order

1. Register your EK1 device ID at EK1tool.com and update it there; we cannot convert files for an unregistered device.
2. Create an account at login.n75tuning.com. Unsure whether your car needs an ID read or a full ECU read? Email CS@N75TUNING.COM before you proceed; do not guess. An ECU checker is on N75Tuning.com.
3. Read your ECU or ECU ID (model and year dependent) with the device; the read lands in the SD card's Maps folder.
4. Open a tuning ticket with your ECU ID or read file, device serial (back of the device), VIN, make, model, year, order number, full modification list and tune type (91 octane, WMI, race gas, pops, gurgles, Showtune), and upload the read file.
5. We send back your OEM file and an off-the-shelf base file matched to your mods, used to gauge your engine before revisions. Download it to Maps.
6. Write the Bootpatch first if your car needs one, then the tuned base file.
7. Datalog the base file: RPM, boost or MAP, relative and absolute throttle position, ignition timing, AFR, STFT, LTFT and vehicle speed, plus wastegate position and target if your ECU supports them. Log 3rd and 4th gear wide-open-throttle pulls.
8. Upload the logs from the SD card's Logs folder. Revised files come back as downloads; put them in Maps and write the one you want.

Videos: the step-by-step tuning portal guide, and install and logging on the Veloster N, Elantra N and Kona N with the EK1 Mini2+.

2024 Elantra N and Elantra N Line (CPEGD3 ECU): both need a bench flash harness kit and a direct EK1-to-ECU connection. Our Elantra N bench kit is sold separately; the N Line kit is not the same.

Calibration features

Developed in Canada with WinOLS and proven on our development cars first. Click the badge to verify our WinOLS licence with EVC.

• Octane and powerband: Hyundai and Kia keep certain maps conservative for 87 octane. We advance them for premium fuel: more power, a smoother powerband right to redline and better fuel economy.

Before you order

• Have an experienced tech look over the car first. There is no tuning around a mechanical issue; it becomes more apparent on a tune.
• Remove the free N75 Swag Pack auto-added to your cart; it ships physically and adds a shipping fee. The file alone has no shipping fee.

366 whp / 411 ft-lb with the air-fuel ratio trace on our dyno (Dynojet, STD correction).

FAQ

Do I send you my ECU?

No. Nothing ships either way; your files move through the portal.

What do I get without revisions?

Your OEM file plus an off-the-shelf base file for your mods; Add 3 Revisions adds three more built from your logs.

Use and liability notice

N75 Motorsports takes no responsibility for damage to your engine. Base tunes are tested, but we cannot see your engine's condition remotely. Locally we reject knocking engines; with EK1 customers we cannot screen for them.