Product Description
Michigan Motorsports Premium Grey 24" O2 Sensor Extension Harness – Square 4 Pin LS1 LS2 LS6 GM
24" Grey Square 4-Pin Oxygen Sensor Wire Extension | Fits Many GM Applications
The Michigan Motorsports Premium Grey 24" O2 Sensor Extension Harness is designed for LS swaps, long tube header installations, and custom exhaust setups where additional oxygen sensor wiring length is required. Featuring a grey square 4-pin connector, this plug-and-play extension connects directly between your factory O2 sensor and vehicle harness with no cutting or splicing required. Built for durability and proper signal integrity, it helps maintain accurate air/fuel ratio readings while providing the extra reach needed for a clean, professional installation. Carefully compare your connector style before ordering to ensure proper fitment.
Key Features & Benefits
- True 24-Inch Extension Length – Provides a full 24 inches of additional wiring to eliminate strain on factory oxygen sensor connectors during header installs and exhaust modifications.
- Grey Square 4-Pin OEM-Style Connector – Designed to match common GM grey square oxygen sensor connectors for secure fitment and reliable signal transmission.
- Plug-and-Play Installation – No cutting or splicing required. Installs inline between factory harness and O2 sensor for a clean, professional wiring solution.
- Maintains Accurate Sensor Feedback – Quality construction helps preserve proper air/fuel ratio readings for optimal drivability and performance.
- Broad GM Compatibility – Works on many GM applications beyond those listed; always verify connector style visually before purchase.
Key Fitments
- Performance Applications – 2008–2009 Pontiac G8 GT V8; 2004–2006 LS1/LS2 Pontiac GTO (Front Sensors); 2005–2013 Chevrolet Corvette (Rear Sensors); 2004–2009 LS6 CTS-V (Front & Rear).
- Buick – 2005–2007 Allure; 2005 Century; 2005–2007 LaCrosse; 2004–2005 LeSabre; 2006–2008 Lucerne; 2004–2005 Park Avenue; 2004 Regal; 2005–2007 Rendezvous; 2005–2007 Terraza.
- Chevrolet / Pontiac / Saturn – 2005–2007 Chevrolet Corvette; 2005–2007 Equinox; 2004–2007 Impala; 2005–2007 Malibu; 2004–2007 Monte Carlo; 2005–2007 Uplander; 2005 Venture; 2005 Pontiac Aztek; 2004–2005 Bonneville; 2005–2007 G6; 2004–2007 Grand Prix; 2005–2007 Montana; 2006–2007 Torrent; 2007 Saturn Aura; 2005–2007 Saturn Relay.
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Perfect for my G8 build!
These extensions worked perfectly for my G8 build. The length makes install and removal much easier and the sleeve/wrap is great! Super flexible but provides adequate protection from heat and rough edges! Highly recommended!!
