Premium GREY 02 Oxygen Sensor Extension Square 4 Pin LS1 LS2 O2 Wire Harness Gray 24"
24" Grey Square Connector O2 Sensor Extensions
Built with genuine Delphi connectors, seals and terminals
OEM grade txl Cross-linked polyethylene wire for superior high temperature and abrasion resistance OEM grade nylon split loom
They will work on many GM application besides those listed.
Look carefully at the connector pictures to verify they are what you need.
Fits the following vehicles and many others not listed:
2008-2009 G8 GT V8
2004-2006 LS1/LS2 GTO (front sensors)
2004-2005 LS6 CTS-V (front sensors and rear)