{"product_id":"namz-custom-cycle-o2-sensor-extentions-and-bung-reducers-18mm-to-12mm-pair-850-08782","title":"NAMZ Custom Cycle O2 Sensor Extentions \u0026 Bung Reducers - 18mm TO 12mm Pair — Harley-Davidson (2012-2026)","description":"\u003cp\u003eNAMZ Custom Cycle O2 sensor extensions with 18mm-to-12mm bung reducers let you fit older-style exhaust headers onto newer Harley models where sensor bosses have moved or changed size. This pair includes pre-installed terminals without connectors, ready to splice into your existing wiring harness.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e18mm to 12mm bung reducer pair\u003c\/li\u003e\n  \u003cli\u003ePre-installed terminals (connectors not included)\u003c\/li\u003e\n  \u003cli\u003e6-inch extension length\u003c\/li\u003e\n  \u003cli\u003eAllows 2009 headers to fit 2010-up models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e NAMZ Custom Cycle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e NBR-01\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 810088715372\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 6 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 4 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 0.75 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.3 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits 2012 and newer FXST and Dyna models. Allows fitment of 2009-style header pipes that would otherwise be incompatible with 2010-up sensor locations and boss sizes.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this let me use my 2009 headers on a 2010+ Harley?\u003c\/h3\u003e\n\u003cp\u003eYes — the 6-inch extensions reach the relocated sensors on 2010-up models, and the bung reducers adapt the different boss sizes between years.\u003c\/p\u003e\n\u003ch3\u003eDo the connectors come installed?\u003c\/h3\u003e\n\u003cp\u003eTerminals are pre-installed, but connectors are not included. You will need to splice them into your bike's wiring harness or source compatible female connectors separately.\u003c\/p\u003e\n\u003ch3\u003eWhat size reducers are included?\u003c\/h3\u003e\n\u003cp\u003eThis kit includes 18mm-to-12mm bung reducers. Verify your header bung and sensor hole sizes before ordering.\u003c\/p\u003e\n\u003ch3\u003eWill these work on models other than Dyna and FXST?\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for 2012+ FXST and Dyna models. Other cruiser models may require different extension lengths or reducer sizes — contact NAMZ to confirm fitment.\u003c\/p\u003e","brand":"NAMZ Custom Cycle","offers":[{"title":"Default Title","offer_id":53035917115503,"sku":"850-08782","price":21.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_209ad549-9011-4d5d-8c96-ffcdc917b272.png?v=1779563703","url":"https:\/\/vtwinbikers.com\/products\/namz-custom-cycle-o2-sensor-extentions-and-bung-reducers-18mm-to-12mm-pair-850-08782","provider":"Vtwinbikers","version":"1.0","type":"link"}