{"product_id":"capristo-exhaust-100-cell-sport-cats-bmw-850i-g15-1991-1992","title":"Capristo Exhaust 100 Cell Sport Cats BMW 850i G15 1991-1992","description":"\n\u003ch2 class=\"product-title h3\" id=\"products_name\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eCapristo Exhaust 100 Cell Sport Cats BMW 850i G15 1991-1992\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-sourcepos=\"3:1-3:17\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cstrong\u003e1. Check Engine Light (CEL) Risks \u0026amp; Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eWhy Does a CEL Appear?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eRemoving OEM cats reduces exhaust backpressure, causing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003erear O2 sensors\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto detect \"insufficient catalyst efficiency.\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eThis triggers a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eP0420\/P0430\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Catalyst Efficiency Below Threshold) code.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eHow to Prevent\/Fix the CEL:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e✅\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOption 1: ECU Tuning (Best Solution)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eA\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecustom ECU tune\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecan disable rear O2 sensor monitoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eRecommended tuners for BMW M5 F90:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eBM3 (BootMod3)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eMHD\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eDME Tuning (femto unlock required for 2020+ models)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e✅\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOption 2: O2 Sensor Spacers\/Extensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eMoves the O2 sensor slightly out of the exhaust stream, tricking it into reading \"acceptable\" emissions levels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eWorks in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esome cases\u003c\/strong\u003e, but not guaranteed (depends on the car).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e✅\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOption 3: CEL Defouler Mini-Cats\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eSmall catalytic elements that screw into the O2 sensor bung to simulate OEM cat efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eMore reliable than spacers but may still fail over time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003e2. Performance \u0026amp; Sound Impact\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eWith OEM Cats Removed:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eLouder, more aggressive exhaust tone\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(CAPRISTO valves will still control volume).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eIncreased horsepower \u0026amp; throttle response\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(less restriction).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePotential rasp\/drone\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(depending on setup).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eWith High-Flow Cats (e.g., CAPRISTO 200-Cell):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eBetter emissions compliance\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(may pass visual inspection in some regions).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eSlightly quieter than test pipes\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebut still much freer-flowing than OEM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003e3. Installation Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eDirect OEM Fitment\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– The CAPRISTO exhaust bolts into factory hangers,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ebut\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eif you’re removing the cats, you may need:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eAftermarket downpipes\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(catless or high-flow).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eNew gaskets\/clamps\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor a proper seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003ePossible mid-pipe modifications\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eif mixing with non-OEM parts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003e4. Legal \u0026amp; Emissions Compliance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e🚨\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eCatless setups are illegal for street use\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein most countries (USA, EU, etc.).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eHigh-flow cats (200-cell) may still fail strict emissions tests\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(check local laws).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003eCAPRISTO’s system itself is legal\u003c\/strong\u003e, but\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eremoving OEM cats makes the vehicle non-compliant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFitment Chart:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003ctable style=\"width: 105.291%; height: 65.9376px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"color: rgb(255, 255, 255); background-color: rgb(3, 88, 156); height: 23.1719px;\"\u003e\n\u003ctd style=\"text-align: center; width: 25.8118%; height: 23.1719px;\"\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 20.1499%; height: 23.1719px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 20.1499%;\"\u003e\u003cstrong\u003eStyle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 32.9725%; height: 23.1719px;\"\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(232, 244, 248); height: 23.1719px;\"\u003e\n\u003ctd style=\"text-align: center; width: 25.8118%; height: 23.1719px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eBMW \u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 20.1499%; height: 23.1719px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eM3\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 20.1499%;\"\u003eG80\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 32.9725%; height: 23.1719px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e2021-2024\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: center; width: 25.8118%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eBMW\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 20.1499%; height: 19.5938px;\"\u003eM4\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 20.1499%;\"\u003eG82\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 32.9725%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e2020\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Capristo Exhaust","offers":[{"title":"Default Title","offer_id":51933049225508,"sku":"02BM11603010","price":4655.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/BMW_M8_G82_Grand_Coupe_Ersatzrohre_800x533px-e1680634708156.jpg?v=1768607460","url":"https:\/\/autohousesupply.com\/products\/capristo-exhaust-100-cell-sport-cats-bmw-850i-g15-1991-1992","provider":"AutoHouseSupply","version":"1.0","type":"link"}