The BBK O2 sensor extension harness pair for 1986–2010 Mustang 5.0 and 4.6 addresses relocated O2 sensors when installing long-tube headers. Each harness uses OEM-style factory connectors for simple plug-in installation without splicing. Some connector locator tabs may need trimming to click into place. Sold in pairs, these direct-fit extensions are recommended for full-length header installs and are made in the USA.
BBK 86-10 Mustang 5.0 4.6 O2 Sensor Wire Harness Extensions (pair)