Insane stopping power for the street. Great for spirited runs in the mountains. Never had any fade. A little noisy/squeaky on stock rear rotors, but worth it.
just installed the kit went in perfectly think it will work better than factory thanks
Description
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 to your ECU (can be completed without this kit)
Please see our full install tutorial here, or see the below videos.
TSP Rewards
Purchase this product and earn $1.50 towards your next purchase!