The OBD2 Budget D & B-series Engine Harness is designed specifically for Honda Civic and Integra models with engines such as the B16 and D16. The harness includes necessary wiring and components for easy installation, ensuring compatibility with the specified OE/OEM part numbers (CNCH-OBD2-1, CNCHOBD21). With a focus on budget-friendly options, this engine harness is a reliable choice for those looking to restore or upgrade their vehicle's engine system.