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Two Step Performance

4.5 (123)

KTuner Connectivity Device for 2025+ Honda Civic Si

Name: Two Step Performance KTuner Connectivity Device for 2025+ Honda Civic Si - KTuner Connectivity Device for 2025+ Honda Civic Si
Brand: Two Step Performance
SKU: 44673524629636
Price: 75.0 USD
Availability: InStock
Rating: 5 (7 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$75.00

Quantity

Color

Black

Quantity

This device allows flash your 2025+ Honda Civic Si ECU.
Please note that this kit does not work with the Hondata FlashPro.

BEFORE PURCHASING, YOU MUST:
- Enter your full KTuner serial number (found on the box or unit)
- Lock your KTuner device ...

Reviews

5.0

8 ratings

Necessary!

Nothing really explains that you need this kit, but if you have a 2025+, youll need this. Worked effortlessly on my 2026 civic si. Kept getting a 12th port OBD issue on my ktuner app when trying to flash, but once i figured out it was because i needed this tool, it made it so easy.

Carlos · April 5, 2026