{"product_id":"michigan-motorsports-ls1-o2-oxygen-sensor-extension-harness-24in-set-of-2-4-pin-oem-style","title":"Michigan Motorsports LS1 O2 Oxygen Sensor Extension Harness - 24in Set of 2, 4‑Pin OEM-Style","description":"\u003cp\u003e\u003cstrong\u003eThe Michigan Motorsports LS1 24-inch O2 oxygen sensor extension harness is a plug-and-play pair of 4-pin extensions that add reach to factory LS1 sensor wiring without cutting or splicing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you're relocating exhaust components, fitting aftermarket headers, or performing engine work that alters sensor placement on LS1 platforms, these extensions give you the extra wiring length needed while preserving the original harness. Built with OEM-style 4-pin connectors and automotive-grade conductors, this set of two 24\" leads maintains proper electrical contact and a tidy, factory-like installation on Camaro, Firebird, Pontiac and Chevy LS1 applications.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this extension harness simplify installation when I change headers or exhaust?\u003c\/h3\u003e\n\u003cp\u003eThe extension adds 24 inches of wiring so oxygen sensors can reach their vehicle harness after exhaust or header modifications. Because the connectors match factory 4-pin plugs, you avoid cutting or modifying OEM wires, which reduces installation time and preserves serviceability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e24\" extra length per harness to bridge relocated sensors\u003c\/li\u003e\n  \u003cli\u003eFactory-style 4-pin connectors for direct mating\u003c\/li\u003e\n  \u003cli\u003eNo splicing or soldering required—plug in and go\u003c\/li\u003e\n  \u003cli\u003eKeeps wiring neat for easier future servicing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these work with my LS1-equipped Camaro, Firebird, Pontiac or Chevy?\u003c\/h3\u003e\n\u003cp\u003eYes—these extensions are made specifically for LS1 oxygen sensor circuits that use a 4-pin connector format. They match the standard pin arrangement and connector shape used in stock LS1 harnesses to ensure compatibility across those GM models.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for LS1 sensor wiring systems\u003c\/li\u003e\n  \u003cli\u003eCompatible with common LS1 model years and platforms\u003c\/li\u003e\n  \u003cli\u003eIntended for 4-pin upstream or downstream sensors\u003c\/li\u003e\n  \u003cli\u003eSold as a set of two for dual-sensor setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the build details and how durable is the wiring?\u003c\/h3\u003e\n\u003cp\u003eThe harnesses use automotive-grade insulation and terminals that withstand typical engine-bay heat and exposure. While not a replacement for heavy-duty race wiring, the construction is intended for reliable electrical continuity and to mimic factory fit-and-finish for street and light-performance use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomotive-grade wire insulation for high-temperature zones\u003c\/li\u003e\n  \u003cli\u003eOEM-style terminals to preserve signal integrity\u003c\/li\u003e\n  \u003cli\u003eSealed connector housings to resist moisture and dirt\u003c\/li\u003e\n  \u003cli\u003e24\" length matched to common modification needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I reinstall the original sensor wiring later if I remove aftermarket parts?\u003c\/h3\u003e\n\u003cp\u003eYes. Because the extensions plug directly into the factory harness and sensor, removing aftermarket exhaust or headers is straightforward—simply unplug the extensions and reconnect the OEM wiring. This preserves the original harness and keeps the vehicle reversible to stock configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play connectors keep factory wiring intact\u003c\/li\u003e\n  \u003cli\u003eRemovable without cutting or permanent changes\u003c\/li\u003e\n  \u003cli\u003eMaintains original sensor and harness condition for resale\u003c\/li\u003e\n  \u003cli\u003eHelps keep vehicle compliant with original wiring layout\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Michigan Motorsports LS1 24\" O2 sensor extension harnesses are aimed at owners and technicians who modify or service LS1 engines and need additional sensor reach without altering factory wiring. They suit DIY mechanics changing headers or exhaust, performance shops performing engine swaps, and restoration projects where preserving the original harness and connector integrity matters. If you run LS1-based Camaro, Firebird, Pontiac or Chevy platforms and require straightforward, OEM-style oxygen sensor extension, this set provides a neat, reliable solution that simplifies installation and future servicing.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this extension require cutting my factory wiring?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The plug-and-play 4-pin connectors mate directly to factory harness and sensor—no cutting or splicing needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these harnesses sold as a single or set?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They come as a set of two 24\" extension harnesses suitable for dual O2 sensor setups.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Michigan Motorsports","offers":[{"title":"Default Title","offer_id":48084773208222,"sku":"B0143PUXRC","price":34.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/michigan-motorsports-front-packaging-ls1-o2-extension.jpg?v=1785862707","url":"https:\/\/northtrailauto.ca\/products\/michigan-motorsports-ls1-o2-oxygen-sensor-extension-harness-24in-set-of-2-4-pin-oem-style","provider":"North Trail Auto","version":"1.0","type":"link"}