{"product_id":"aracer-af2-professional-wideband-afr-module","title":"aRacer AF2 Professional Wideband AFR Module","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe aRacer AF2 Professional Wideband AFR Module is the piece that makes real tuning possible. It's aRacer's improved wideband O2 module — a big upgrade over the older AF1 — and it now comes \u003cstrong\u003eincluded with a Bosch LSU 4.9 wideband oxygen sensor\u003c\/strong\u003e for stable, accurate, fast AFR readings you can actually trust.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe headline upgrade is simplicity. aRacer redesigned the harness so the AF2 \u003cstrong\u003eplugs directly into your aRacer ECU with no splitter, adapter, or extra cables\u003c\/strong\u003e — everything the old AF1 needed. That means a cleaner, faster install with no unused connectors or lengthy splitter wires to tuck away. Plug it in and get back to riding.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003ePaired with a compatible aRacer ECU, the AF2 unlocks \u003cstrong\u003eautotune\u003c\/strong\u003e and enables Closed Loop Fuel Compensation on Stage 2 and higher setups, so your engine can correct its own air\/fuel on the fly. It'll also run as a \u003cstrong\u003estandalone wideband\u003c\/strong\u003e when paired with an aRacer multi-function display (DG-2) or the aRacer app. No calibration needed — high accuracy, high-speed response, right out of the box.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eIf you're running an \u003cstrong\u003eaRacer RC MIni 5 ECU\u003c\/strong\u003e and want to tune it right, this is the module that gets you there.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eIncludes a Bosch LSU 4.9 18mm wideband O2 sensor\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStable, accurate, fast AFR readings — major upgrade over the AF1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePlugs directly into the aRacer ECU — no splitter or extra cables needed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUnlocks autotune + Closed Loop Fuel Compensation (Stage 2+ ECUs)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDoubles as a standalone wideband with a DG-2 display or the aRacer app\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eNo calibration required — plug and play, high-speed response\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eNOTES: Required M18 Oxygen Sensor Bung on exhaust. \u003c\/em\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e See\u003c\/span\u003e\u003ca href=\"https:\/\/www.drowsports.com\/weld-on-oxygen-sensor-stainless-steel-bung-cap-kit\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e Weld-On Oxygen Sensor Bung\u003c\/a\u003e\u003c\/p\u003e","brand":"aRacer","offers":[{"title":"Default Title","offer_id":54424758518044,"sku":"ASI-0007-4","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/5679\/8748\/files\/aracer-af2-wideband-o2-sensor.jpg?v=1747088851","url":"https:\/\/www.drowsports.com\/products\/aracer-af2-professional-wideband-afr-module","provider":"DROWsports","version":"1.0","type":"link"}