K Tuner Card
Overview
Product sourcing insights & recommendations
The term 'K-Tuner card' primarily refers to the KTunerFlash V1.2 interface—a compact, "card-sized" ECU tuning device—or the specialized ECU Connectivity Kit required for the latest 2025–2026 Honda/Acura models.
Product Overview & Identity
* The "Card" Interface (V1.2): A screenless hardware unit that acts as a bridge between your laptop and the vehicle's OBD-II port. It is popular for its low profile and high performance-to-cost ratio.
* The 2025/2026 Connectivity Kit: This is a mandatory hardware bypass board needed to unlock the newer, secured ECUs found in the 2025+ Civic Si and Integra. Without this specific "card" component, standard tuning units cannot flash the vehicle.
Market Trends & Insights (2024–2026)
* Supply Chain Shortages: As of mid-2026, the market is experiencing a significant "bottleneck" for 2025/2026 connectivity kits. Leading retailers report extended backorders with "No ETA," making these kits a high-demand, low-supply commodity in the B2B and enthusiast sectors.
* Shift to V2 Dominance: While the V1.2 "card" remains a budget favorite, consumer demand has shifted heavily toward the KTuner V2 because of its 5" touchscreen display and standalone data logging features.
* Resale Ecosystem: K-Tuner maintains high market liquidity. Because the hardware is not locked to a specific VIN permanently (it can be unlocked and resold), used "cards" retain approximately 70-85% of their retail value, creating a robust secondary market.
Strategic Sourcing Guidance
For businesses or importers, the 2025/2026 Connectivity Kit is currently the highest-growth opportunity within the Honda performance niche. Sourcing generic OBD2 flash tools is an alternative for broader market reach, though they lack the specialized proprietary support of the K-Tuner ecosystem.
I have found 138 products related to automotive ECU tuning and OBD2 interfaces. The file below includes detailed pricing, supplier locations (primarily Shenzhen and Guangzhou), and MOQs.
I've analyzed the K-Tuner market for the 2025/2026 model years. You can continue with:
Obd2 Ecu Flash Tuning Tool For Honda Acura
Products · 3 lists
Alientech KESS V3 Slave ECU Flash Tool OBD2 Bench Boot Mode 12-24V 1-Year Warranty Passenger Cars Trucks Heavy-Duty Vehicles
KESS3 Slave ECU Flash Tool OBD2 Bench Boot Mode for Passenger Cars Trucks Heavy Duty Vehicles Car Truck Motorcycle ECU Tuning
Shenzhen Truck Brother Technology Co., Ltd.🇨🇳CN5 yrs
A+ Tactrix Openport 2.0 ECU Chip Tuning Tool Full Chip Open Port ECU Flash OBD2 Connector for M-er-ce-de-s Multi-Brand Cars
Shenzhen Automan Technology Co., Ltd.🇨🇳CN6 yrs
Alientech KESS3 Kess V3 Bench Boot OBD II OBD2 Cars AUTO ECU TCU Ecm Programmer Adblue DPF IMMO Tunning Checksum Chip Flash Tool
Shenzhen Jiushu Technology Co., Ltd.🇨🇳CN11 yrs
BDM100 V1255 ECU Chip Tuning Tool BDM Frame Bdm100 CDM1255 OBD2 Automotive Car Diagnostic Auto Tool Fgtech V54 BDM 100
Shenzhen Jialemao E-Commerce Co., Ltd.🇨🇳CN1 yr
Full Chip Openport 2.0 ECU FLASH Open Port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool for Mercedes Benz J2534 Scanner
Professional Tactrix Openport 2.0 ECU Flash Chip Tuning Tool OBDII Auto Car Diagnostic Scanner Code Reader Cables Mercedes
Meizhou City Lisheng Trading Co., Ltd.🇨🇳CN3 yrs
Openport 2.0 ECU FLASH open port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Shenzhen Jiaxinjie Technology Co., Ltd.🇨🇳CN9 yrs
EU Red OBD2 Tuning K-ess V2 V5.017 Online 2.80 & K-TAG 7.020 2.25 K-TAG ECU Programming Code Reader Tools
Shenzhen Youke Technology Co., Ltd.🇨🇳CN4 yrs
Launch Pad 7 VII Car OBD2 Scanner Diagnostic Tool ECU Tuning Programming Vehicle Diagnostic Machine for Cars
HILRO International Trade (HongKong) Co., Limited🇭🇰HK1 yr
New Version Carprog V13.77 Automotive ECU Programmer Chip Tuning Tool OBD2 USB Connectivity OLIVER Fitment 12V
Openport 2.0 ECU FLASH Open Port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Shenzhen Kaisheng Century Electronics Co., Ltd.verified🇨🇳CN3 yrs
Openport 2.0 ECU FLASH open port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Ali Kaisheng Century (shenzhen) Electronics Co., Ltd.🇨🇳CN1 yr
Openport 2.0 ECU FLASH open port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Shenzhen Pinkuo Trading Co., Ltd.🇨🇳CN2 yrs
Openport 2.0 ECU FLASH open port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Shenzhen Beast & Lion Technology Co., Ltd.🇨🇳CN1 yr
MPPS V18 Unlock Version ECU Chip Tuning OBD2 Auto Diagnostic Tool ECU Tunning Flasher Remap Cable for EDC15 EDC16 EDC17
Shenzhen Sike Yingda Tech Co., Ltd.🇨🇳CN4 yrs
Openport 2.0 ECU FLASH open port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Shenzhen Nordson Electronics Co., Ltd.🇨🇳CN1 yr
Openport 2.0 ECU FLASH open port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Shenzhen Huake Shengye Technology Co., Ltd.verified🇨🇳CN2 yrs
Openport 2.0 ECU FLASH open port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Shenzhen Shengdingtong Technology Co., Ltd.verified🇨🇳CN1 yr
Best Quality Galletto 1260 ECU Flasher OBD2 Cable EOBD Galletto 1260 FTDI FT232RQ ECU Chip Tuning Tool Read&Write Car ECU
Shenzhen Kingobd Electronic Tech Co., Ltd.🇨🇳CN13 yrs
Openport 2.0 ECU FLASH open port 2 0 Auto Chip Tuning OBD 2 OBD2 Car Diagnostic Tool
Shenzhen Xiongfa Weiye Electronics Co., Ltd.🇨🇳CN13 yrs
Best 1260 ECU Chip Tuning OBD2 FTDI Chip ECU Flasher Programmer Auto Scanner Cable Diagnostic Interface Tool for Galletto
Guangzhou Xinyue Electronic Technology Co., Ltd.🇨🇳CN7 yrs
Tactrix Openport 2.0 ECU Chip Tuning Tool Open Port USB ECU Flash OBD2 OBDII Connector for Mercedes for Benz Multi Brand Cars
Guangzhou Xingpaili Trade Co., Ltd.🇨🇳CN9 yrs
Redboard LED BDM Frame ECU Chip Tuning Tool Kess V2 V2.7/ 2.53 K-suite Firmware V5.017 Obd2 Reading and Writing Tool
Shenzhen Xintengli Auto Accessories Co., Ltd.🇨🇳CN11 yrs
Galletto 1260 ECU Chip Tuning Cable EOBD Tuning Tools with Audi 2x2 Cable
Shenzhen Zhichi Lianchuang Technology Co., Ltd.🇨🇳CN1 yr
Newest EOBD2 Galletto 1260 OBD Programmer ECU Chip Tuning
Shenzhen Jfind Technology Co., Ltd.🇨🇳CN9 yrs
2026 MPM ECU TCU Chip Tuning Tool with VCM Suite Best for American Car ECUs All Via OBD
Shenzhen Talentcar Electronic Co., Ltd.🇨🇳CN9 yrs
OBDII Chip tuning Box Super OBD2 Interface Plug Reset Button and Drive double board diesel Save More Torque Power Than Eco Nitro
Shenzhen city Wazney Electronic Technology Co., Ltd.🇨🇳CN9 yrs
Drive Nitro Obd2 Eco Chip Tuning BOX Automotive Fuel Saver Fuel Saving Power Enhancement
Shenzhen Alisi Electronic Technology Co., Ltd.🇨🇳CN8 yrsDrive Nitro Obd2 Eco Chip Tuning BOX Automotive Fuel Saver Fuel Saving Power Enhancement
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Sources & References
40 sources cited · Verified industry data & reports
K-Tuner... What is it and should I get one...
CivicX.com
KTuner is a device used to tune and customize your engine's performance. It is similar to Hondata. Most common features added are; Increased Turbo Response ...
KTuner LLC
KTuner
KTuner is an ECU research and development solution for late model J, K, L, and R series applications. KTuner allows the ability to properly tune ignition, fuel ...
KTuner V1.2 ECU Flash Tuner for Accord/Civic/Fit/S2000
dcsports.com
KTuner V1.2 is an ECU flash tuning tool that lets you upload custom tunes to your factory ECU through the OBD-II port. You can adjust fuel maps, ignition ...
r/civic - Ktuner in definitely worth it
Reddit · r/civic
It's a device that enables you to sorta overclock your car engine. You are basically overriding your ECU stock parameters to adjust engine ...
KTunerFlash V2 Touch for Honda Civic, Civic Si & Integra
27WON Performance
Precision control and tuning of important engine outputs such as fuel, timing, psi values, shift points and more...
Beginners Guide to Tuning with Ktuner
Honda Fit forum
This guide is intended to provide an interpretation of datalogs and how to adjust the fuel tables and retard the ignition tables.