B Series OBD0 Subharness | 88-91 EF CRX

Our B-Series Chassis Sub Harness is designed to seamlessly interface our B-Series engine harness with your vehicle’s under-dash wiring. Each version is built for a specific chassis — please ensure you select the correct one from the product title before ordering. Built with high-quality TXL automotive-grade wire and OEM-style connectors, this sub harness ensures a reliable and clean connection every time. It eliminates the guesswork and hassle of wiring integration, making your B-Series swap straightforward and frustration-free. Features: Compatible with our B-Series engine harness Direct plug-in connection to chassis under-dash wiring TXL high-temperature automotive-grade wire OEM-quality connectors for long-term durability Simplifies wiring during engine swaps Quick, clean, and painless installation Note: Refer to the product title for the exact chassis application to ensure proper fitment. Product Disclaimer: We’re unable to provide technical support for setups that use third-party or eBay/Amazon harnesses alongside our sub-harnesses, as these often introduce compatibility issues outside of our control.