Dodge 5.7 6.1 6.4 O2 Sensor Extensions 4 Pin Rear 24 Inch 05-24 PART #11181 FEATURES: These are 4 pin connectors 24" length recommended for the Rear O2 Harness to extend the length for easy install on Hemi long tube headers. Required When Installing Long Tube Headers Top Quality Sealed Connectors Sold in Pairs (Does not fit 2019-2024 RAM See part # 1124) VEHICLE FITMENT: 2005-2024 Chrysler 300C V8 2005-2008 Dodge Magnum V8 2006-2024 Dodge Charger V8 2008-2024 Dodge Challenger V8 2005-2018 RAM 1500 Truck (2019-2026 RAM see Part # 1124) Simplifies Header Installation These BBK O2 Wire Harness Extenders are a must when installing full length headers on your 2005-2024 Dodge or Chrysler V8 due to the fact that the O2 sensor locations are relocated on full length headers. So rather than cutting into your factory wire harness to make the connections reach, simply plug in a set of BBK extensions and make all the connections look factory with no mess. Easy Installation OEM connectors and heat protective sleeves are used to make installation a snap. Simply transfer your factory oxygen sensors to the new O2 sensor location in the collectors and click these into place on the OEM harness. Locator Tabs Some connectors may require the small directional location tabs to be removed from the ends of the connectors to click into place.