The Aeroflow Performance oxygen sensor extensions are amust when upgrading the exhaust and the o2 sensors aremoved further away from their factory OE location. They feature an OEM design that plugs right in the OE sensor harness on one end and the o2 sensor on the other with no cutting or splicing required. Made from high temperature resistant wiring and with a fire retardant shielding fro added protection against the heat from the exhaust system. Designed to be a plug and playin Holden Commodore VT and Holden Commodore VY , VZ &VE. Sold individually with both lengths of harness 360mm.