{"product_id":"m18-oxygen-sensor-spacer-check-engine-eliminator","title":"M18×1.5 Engine Oxygen Monitor Spacer – Check Light Eliminator for Modified Exhaust | Thomler","description":"\u003ch2\u003eKeep Your Dashboard Clear After Exhaust Modifications\u003c\/h2\u003e\u003cp\u003eDealing with that stubborn dashboard warning after swapping out your catalytic converter or upgrading your exhaust system? This engine oxygen monitor spacer is engineered to prevent false alerts when you've made performance changes to your vehicle. It mounts between your existing oxygen sensor and the exhaust pipe, helping your ECU read accurate data while keeping those annoying trouble codes from lighting up your dash. Built from high-grade stainless steel with a fine mesh filter inside, it's designed to stand up to extreme heat, road salt, and years of under-car exposure. The M18×1.5 thread ensures a snug, leak-free fit on compatible oxygen sensor ports, and installation takes just minutes with basic hand tools—no fabrication or custom wiring needed. Whether you're building a weekend track car or maintaining an off-road project, this adapter delivers a clean, reliable solution for managing sensor data after exhaust work.\u003c\/p\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1060\/5327\/1890\/files\/0x1296_1686681616046_1800x1800_35fb18c6-9fa1-4ab7-b603-9d95af8748e3.webp?v=1793735762\" alt=\"\" style=\"width:100%;max-width:100%;height:auto;display:block;margin:24px 0;\"\u003e\u003ch2\u003eWhy You Need This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates Persistent Dashboard Warnings:\u003c\/strong\u003e Prevents P0420 and P0430 trouble codes from triggering after catalytic converter removal or exhaust modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmbedded Catalyst Core for True Readings:\u003c\/strong\u003e Unlike hollow spacers, this unit contains a miniature catalytic element that helps maintain accurate sensor feedback to your vehicle's computer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant SS304 Construction:\u003c\/strong\u003e Built from premium stainless steel and SS304 alloy with a rust-proof filter mesh—designed to outlast harsh weather and high-temperature exhaust gases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Thread-In Installation:\u003c\/strong\u003e M18×1.5 threading matches OEM oxygen sensor ports on many vehicles; just thread it into place and reconnect your sensor—no special tools or modifications required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight Design:\u003c\/strong\u003e Weighs only 0.088 lb and adds minimal bulk under the car, making it easy to fit in tight engine bays without clearance issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-Road \u0026amp; Competition Use:\u003c\/strong\u003e Specifically engineered for off-highway applications—perfect for track builds, project vehicles, and closed-course racing environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuilt for Performance Projects\u003c\/h2\u003e\u003cp\u003eThis oxygen monitor spacer is designed exclusively for off-road use and closed-course racing applications. It is not legal for installation on vehicles driven on public streets or highways. Before installing, verify that your intended use complies with all local, state, and federal emissions and vehicle modification regulations. When a catalytic converter is removed, the downstream oxygen sensor detects elevated exhaust temperatures and increased levels of unburned hydrocarbons, which typically triggers check engine lights along with diagnostic trouble codes such as P0420 and P0430. This adapter addresses those conditions by moderating sensor exposure and helping your vehicle's computer interpret the modified exhaust flow correctly. Made from durable stainless steel and SS304 with integrated filter mesh, it's built to handle the rigors of performance driving. Whether you're tuning for track days or maintaining a dedicated off-road rig, you can count on straightforward installation, long-term durability, and reliable operation. Every Thomler automotive product ships free within the US, and we back your purchase with a 30-day return policy so you can shop with complete confidence.\u003c\/p\u003e","brand":"Thomler","offers":[{"title":"Default Title","offer_id":55327554273618,"sku":"SKU_1793735760209_690","price":43.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1060\/5327\/1890\/files\/0x900_1686681616025_1800x1800_58b15d68-6c3f-4244-ae5f-556a2fd70d22.webp?v=1793735762","url":"https:\/\/thomler.com\/en-ca\/products\/m18-oxygen-sensor-spacer-check-engine-eliminator","provider":"Thomler","version":"1.0","type":"link"}