{"product_id":"rk-rk-autowerks-s58-catless-downpipes-g80-g82-m3-m4","title":"S58 Catless Downpipes – G80\/G82\/G87 M3, M4 \u0026 M2","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=\"relative basis-auto flex-col -mb-(--composer-overlap-px) [--composer-overlap-px:28px] grow flex\"\u003e\n\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle 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)))]\" dir=\"auto\" data-turn-id=\"ee4e424b-48eb-40c2-941e-c35b4b831326\" data-testid=\"conversation-turn-22\" data-scroll-anchor=\"true\" data-turn=\"assistant\" 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-author-role=\"assistant\" data-message-id=\"1b4c9759-a2e6-4b59-9bf5-8b8ada25b5d0\" dir=\"auto\" 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\" data-message-model-slug=\"gpt-5-2-thinking\"\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-start=\"157\" data-end=\"511\"\u003eRK Autowerks \u003cstrong data-start=\"170\" data-end=\"191\"\u003ecatless downpipes\u003c\/strong\u003e remove the primary exhaust restriction to improve flow, supporting \u003cstrong data-start=\"259\" data-end=\"282\"\u003equicker turbo spool\u003c\/strong\u003e and \u003cstrong data-start=\"287\" data-end=\"311\"\u003ereduced backpressure\u003c\/strong\u003e for strong, immediately noticeable \u003cstrong data-start=\"347\" data-end=\"378\"\u003ehorsepower and torque gains\u003c\/strong\u003e. Developed using \u003cstrong data-start=\"396\" data-end=\"444\"\u003estate-of-the-art 3D scanning and prototyping\u003c\/strong\u003e, they’re engineered for \u003cstrong data-start=\"469\" data-end=\"489\"\u003eOEM-like fitment\u003c\/strong\u003e and proper alignment.\u003c\/p\u003e\n\u003cp data-start=\"513\" data-end=\"942\"\u003eEach downpipe is manufactured from \u003cstrong data-start=\"548\" data-end=\"585\"\u003emandrel-bent T304 stainless steel\u003c\/strong\u003e and features \u003cstrong data-start=\"599\" data-end=\"635\"\u003eCNC velocity stack turbo flanges\u003c\/strong\u003e to promote smooth flow at the turbo outlet. \u003cstrong data-start=\"680\" data-end=\"704\"\u003ePrecision TIG-welded\u003c\/strong\u003e construction with \u003cstrong data-start=\"723\" data-end=\"762\"\u003eheavy-duty V-band \/ exhaust flanges\u003c\/strong\u003e provides a secure, leak-resistant connection built for long-term reliability. \u003cstrong data-start=\"841\" data-end=\"870\"\u003eStainless O2 sensor bungs\u003c\/strong\u003e are mounted in the \u003cstrong data-start=\"890\" data-end=\"911\"\u003efactory locations\u003c\/strong\u003e for a straightforward install.\u003c\/p\u003e\n\u003ch3 data-start=\"944\" data-end=\"956\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"957\" data-end=\"1239\"\u003e\n\u003cli data-start=\"957\" data-end=\"1019\"\u003e\n\u003cp data-start=\"959\" data-end=\"1019\"\u003e\u003cstrong data-start=\"959\" data-end=\"983\"\u003eT304 stainless steel\u003c\/strong\u003e construction with \u003cstrong data-start=\"1002\" data-end=\"1019\"\u003emandrel bends\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1020\" data-end=\"1053\"\u003e\n\u003cp data-start=\"1022\" data-end=\"1053\"\u003e\u003cstrong data-start=\"1022\" data-end=\"1046\"\u003ePrecision TIG-welded\u003c\/strong\u003e joints\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1054\" data-end=\"1105\"\u003e\n\u003cp data-start=\"1056\" data-end=\"1105\"\u003e\u003cstrong data-start=\"1056\" data-end=\"1105\"\u003eHeavy-duty stainless V-band \/ exhaust flanges\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1106\" data-end=\"1166\"\u003e\n\u003cp data-start=\"1108\" data-end=\"1166\"\u003e\u003cstrong data-start=\"1108\" data-end=\"1148\"\u003eFactory O2 sensor locations retained\u003c\/strong\u003e (stainless bungs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1167\" data-end=\"1239\"\u003e\n\u003cp data-start=\"1169\" data-end=\"1239\"\u003eHelps \u003cstrong data-start=\"1175\" data-end=\"1209\"\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-start=\"1241\" data-end=\"1252\"\u003eFitment\u003c\/h3\u003e\n\u003cul data-start=\"1253\" data-end=\"1308\"\u003e\n\u003cli data-start=\"1253\" data-end=\"1277\"\u003e\n\u003cp data-start=\"1255\" data-end=\"1277\"\u003e\u003cstrong data-start=\"1255\" data-end=\"1277\"\u003e2020+ BMW M3 (G80)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1278\" data-end=\"1308\"\u003e\n\u003cp data-start=\"1280\" data-end=\"1308\"\u003e\u003cstrong data-start=\"1280\" data-end=\"1308\"\u003e2020+ BMW M4 (G82 \/ G83)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1310\" data-end=\"1341\"\u003eWARNING (Emissions \/ Legal)\u003c\/h3\u003e\n\u003cp data-start=\"1342\" data-end=\"1604\"\u003e\u003cstrong data-start=\"1342\" data-end=\"1390\"\u003eCatless downpipes are for off-road use only.\u003c\/strong\u003e Installation will typically trigger a \u003cstrong data-start=\"1429\" data-end=\"1473\"\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\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RK Autowerks","offers":[{"title":"Default Title","offer_id":52141745275061,"sku":"RK.DP.S58.G80","price":1258.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/2500\/6517\/files\/IMG-20240801-WA0003_f4bc28ea-d7a7-45c4-8da8-5b09a4569415.jpg?v=1767383376","url":"https:\/\/opusautoworks.ca\/products\/rk-rk-autowerks-s58-catless-downpipes-g80-g82-m3-m4","provider":"OPUS Autoworks","version":"1.0","type":"link"}