{"product_id":"rk-rk-autowerks-s55-catless-downpipes-f80-f82-m3-m4","title":"S55 Catless Downpipes – F80\/F82\/F87 M3, M4, M2 Comp","description":"\u003cdiv role=\"tabpanel\" id=\"tab-description\" class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--description panel entry-content wc-tab\" aria-labelledby=\"tab-title-description\"\u003e\n\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle data-turn=\"assistant\" data-scroll-anchor=\"true\" data-testid=\"conversation-turn-24\" data-turn-id=\"9a429c61-b2ba-419f-a59f-a5733877f6da\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-model-slug=\"gpt-5-2-thinking\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" data-message-id=\"4cc63c7e-edd7-4b3c-af3e-69613b019b4a\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words dark markdown-new-styling\"\u003e\n\u003cp data-end=\"510\" data-start=\"148\"\u003eRK Autowerks \u003cstrong data-end=\"182\" data-start=\"161\"\u003ecatless downpipes\u003c\/strong\u003e remove the primary exhaust restriction to increase flow, helping the turbos \u003cstrong data-end=\"275\" data-start=\"259\"\u003espool faster\u003c\/strong\u003e and reducing backpressure for \u003cstrong data-end=\"349\" data-start=\"306\"\u003esignificant horsepower and torque gains\u003c\/strong\u003e you can feel immediately. Designed using \u003cstrong data-end=\"431\" data-start=\"391\"\u003eadvanced 3D scanning and prototyping\u003c\/strong\u003e, these downpipes are engineered for \u003cstrong data-end=\"488\" data-start=\"468\"\u003eOEM-like fitment\u003c\/strong\u003e and proper alignment.\u003c\/p\u003e\n\u003cp data-end=\"888\" data-start=\"512\"\u003eManufactured from \u003cstrong data-end=\"567\" data-start=\"530\"\u003emandrel-bent T304 stainless steel\u003c\/strong\u003e and finished with \u003cstrong data-end=\"622\" data-start=\"586\"\u003eCNC velocity stack turbo flanges\u003c\/strong\u003e, each downpipe features \u003cstrong data-end=\"671\" data-start=\"647\"\u003eprecision TIG-welded\u003c\/strong\u003e construction and \u003cstrong data-end=\"728\" data-start=\"689\"\u003eheavy-duty V-band \/ exhaust flanges\u003c\/strong\u003e for a secure, leak-resistant connection built to last. \u003cstrong data-end=\"813\" data-start=\"784\"\u003eStainless O2 sensor bungs\u003c\/strong\u003e are mounted in the \u003cstrong data-end=\"854\" data-start=\"833\"\u003efactory locations\u003c\/strong\u003e for straightforward installation.\u003c\/p\u003e\n\u003ch3 data-end=\"902\" data-start=\"890\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-end=\"1185\" data-start=\"903\"\u003e\n\u003cli data-end=\"965\" data-start=\"903\"\u003e\n\u003cp data-end=\"965\" data-start=\"905\"\u003e\u003cstrong data-end=\"929\" data-start=\"905\"\u003eT304 stainless steel\u003c\/strong\u003e construction with \u003cstrong data-end=\"965\" data-start=\"948\"\u003emandrel bends\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"999\" data-start=\"966\"\u003e\n\u003cp data-end=\"999\" data-start=\"968\"\u003e\u003cstrong data-end=\"992\" data-start=\"968\"\u003ePrecision TIG-welded\u003c\/strong\u003e joints\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1051\" data-start=\"1000\"\u003e\n\u003cp data-end=\"1051\" data-start=\"1002\"\u003e\u003cstrong data-end=\"1051\" data-start=\"1002\"\u003eHeavy-duty stainless V-band \/ exhaust flanges\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1112\" data-start=\"1052\"\u003e\n\u003cp data-end=\"1112\" data-start=\"1054\"\u003e\u003cstrong data-end=\"1094\" data-start=\"1054\"\u003eFactory O2 sensor locations retained\u003c\/strong\u003e (stainless bungs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1185\" data-start=\"1113\"\u003e\n\u003cp data-end=\"1185\" data-start=\"1115\"\u003eHelps \u003cstrong data-end=\"1155\" data-start=\"1121\"\u003ereduce under-hood temperatures\u003c\/strong\u003e through improved exhaust flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1198\" data-start=\"1187\"\u003eFitment\u003c\/h3\u003e\n\u003cul data-end=\"1299\" data-start=\"1199\"\u003e\n\u003cli data-end=\"1227\" data-start=\"1199\"\u003e\n\u003cp data-end=\"1227\" data-start=\"1201\"\u003e\u003cstrong data-end=\"1227\" data-start=\"1201\"\u003e2015–2018 BMW M3 (F80)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1262\" data-start=\"1228\"\u003e\n\u003cp data-end=\"1262\" data-start=\"1230\"\u003e\u003cstrong data-end=\"1262\" data-start=\"1230\"\u003e2015–2018 BMW M4 (F82 \/ F83)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1299\" data-start=\"1263\"\u003e\n\u003cp data-end=\"1299\" data-start=\"1265\"\u003e\u003cstrong data-end=\"1299\" data-start=\"1265\"\u003e2018+ BMW M2 Competition (F87)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1332\" data-start=\"1301\"\u003eWARNING (Emissions \/ Legal)\u003c\/h3\u003e\n\u003cp data-end=\"1595\" data-start=\"1333\"\u003e\u003cstrong data-end=\"1381\" data-start=\"1333\"\u003eCatless downpipes are for off-road use only.\u003c\/strong\u003e Installation will typically trigger a \u003cstrong data-end=\"1464\" data-start=\"1420\"\u003eCheck Engine Light \/ Service Engine Soon\u003c\/strong\u003e warning. Removal or modification of emissions equipment is prohibited for vehicles operated on public roads in many jurisdictions.\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pointer-events-none h-px w-px absolute bottom-0\" data-edge=\"true\" aria-hidden=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RK Autowerks","offers":[{"title":"Default Title","offer_id":52141745242293,"sku":"RK.DP.S55.F80","price":558.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/2500\/6517\/files\/IMG_9400-2_f2618a12-06b1-4462-9a8c-f9d7f4739639.jpg?v=1767383372","url":"https:\/\/opusautoworks.ca\/products\/rk-rk-autowerks-s55-catless-downpipes-f80-f82-m3-m4","provider":"OPUS Autoworks","version":"1.0","type":"link"}