Suitable for most American, European, and Japanese gasoline vehicles This product is a high-performance dynamic soft-flasher operating at 20MHz with ample flash memory, providing extended compatibility and faster processing for consistent performance improvements It is a vehicle-specific, custom-programmed 20MHz microcontroller that uses high-speed serial input/output to communicate directly with the ECU via the OBD-II port 1. VP12 is ready to use, easy to install, plug and play, no hardware modifications required. When not in use, it can be unplugged and the vehicle restored to its original state at any time 2. Warm reminder: To ensure proper operation, follow the installation tutorial carefully. Turn off the engine, insert the device, press the "Reset" button, and wait 25 minutes for the process to complete. If issues arise, contact customer support 3. LED indicator: The VP12 is an intelligent plug-in module that automatically collects vehicle data and generates a vehicle-specific MAP without manual intervention. The LED indicator displays different working states Note: This product is intended for users with technical knowledge. Installation guide is not included; professional installation is strongly recommended Verify compatibility before purchase Product design may vary slightly between batches, including minor differences in appearance or color, which do not affect functionality Color: As shown in photo Material: Plastic Package Contents: 1 x VP12 OBD Dynamic Soft-Flash Chip Only the above items are included; other accessories are not included Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance is +/- 13 cm