{"product_id":"bmw-g80-g82-stainless-steel-valved-full-exhaust-system","title":"BMW G80 M3\/G82 M4 Valved  Exhaust System","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003csection 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=\"request-WEB:f0aa8435-bdb5-42ec-aa9c-832ab47fdd80-2\" data-testid=\"conversation-turn-6\" data-scroll-anchor=\"true\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--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\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"1f8a707e-fefd-49b4-82af-5a26b3b3e05c\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"56\"\u003e\u003cstrong data-start=\"0\" data-end=\"56\"\u003eBMW G80 M3 \/ G82 M4 Valved Exhaust System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"58\" data-end=\"281\"\u003ePurpose-built for the S58 platform, this exhaust system transforms the G80 M3 and G82 M4 into something far more visceral—sharper, louder, and unmistakably aggressive—while maintaining the refinement expected at this level.\u003c\/p\u003e\n\u003chr data-start=\"283\" data-end=\"286\"\u003e\n\u003ch3 data-start=\"288\" data-end=\"301\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"292\" data-end=\"301\"\u003ePrice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"302\" data-end=\"315\"\u003e\u003cstrong data-start=\"302\" data-end=\"315\"\u003e$3,299.99\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"317\" data-end=\"320\"\u003e\n\u003ch3 data-start=\"322\" data-end=\"337\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"326\" data-end=\"337\"\u003eFitment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"338\" data-end=\"582\"\u003e\n\u003cli data-start=\"338\" data-end=\"360\"\u003eBMW G80 M3 (2021+)\u003c\/li\u003e\n\u003cli data-start=\"361\" data-end=\"389\"\u003eBMW G82 \/ G83 M4 (2021+)\u003c\/li\u003e\n\u003cli data-start=\"390\" data-end=\"464\"\u003eDirect bolt-on system — no cutting or permanent modifications required\u003c\/li\u003e\n\u003cli data-start=\"465\" data-end=\"536\"\u003eFully compatible with OEM electronic valve controls and drive modes\u003c\/li\u003e\n\u003cli data-start=\"537\" data-end=\"582\"\u003eDesigned for both RWD and xDrive variants\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"584\" data-end=\"587\"\u003e\n\u003ch3 data-start=\"589\" data-end=\"612\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"593\" data-end=\"612\"\u003eSound Character\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"613\" data-end=\"680\"\u003eThe S58 engine has serious potential—this system brings it forward.\u003c\/p\u003e\n\u003cul data-start=\"682\" data-end=\"1177\"\u003e\n\u003cli data-start=\"682\" data-end=\"810\"\u003e\n\u003cstrong data-start=\"684\" data-end=\"702\"\u003eValves Closed:\u003c\/strong\u003e Deep, controlled tone with a refined, low-frequency presence. Ideal for daily driving with minimal drone.\u003c\/li\u003e\n\u003cli data-start=\"811\" data-end=\"959\"\u003e\n\u003cstrong data-start=\"813\" data-end=\"829\"\u003eValves Open:\u003c\/strong\u003e Aggressive, motorsport-inspired sound with increased volume, sharper throttle response, and pronounced burbles on deceleration.\u003c\/li\u003e\n\u003cli data-start=\"960\" data-end=\"1177\"\u003e\n\u003cstrong data-start=\"962\" data-end=\"979\"\u003eTone Profile:\u003c\/strong\u003e Deeper and more exotic than stock, eliminating the muted factory sound while reducing unwanted rasp. Clean, high-performance acoustics under load with a commanding presence at wide open throttle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1179\" data-end=\"1182\"\u003e\n\u003ch3 data-start=\"1184\" data-end=\"1215\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1188\" data-end=\"1215\"\u003eMaterials \u0026amp; Engineering\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1216\" data-end=\"1608\"\u003e\n\u003cli data-start=\"1216\" data-end=\"1318\"\u003eConstructed from \u003cstrong data-start=\"1235\" data-end=\"1257\"\u003epremium [Material]\u003c\/strong\u003e for durability, heat resistance, and long-term performance\u003c\/li\u003e\n\u003cli data-start=\"1319\" data-end=\"1395\"\u003ePrecision TIG-welded for structural integrity and clean, high-end finish\u003c\/li\u003e\n\u003cli data-start=\"1396\" data-end=\"1471\"\u003eMandrel-bent piping ensures smooth airflow and maximum exhaust velocity\u003c\/li\u003e\n\u003cli data-start=\"1472\" data-end=\"1531\"\u003eIntegrated valved design retains full OEM functionality\u003c\/li\u003e\n\u003cli data-start=\"1532\" data-end=\"1608\"\u003eEngineered to balance backpressure and flow for optimal turbo efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1610\" data-end=\"1613\"\u003e\n\u003ch3 data-start=\"1615\" data-end=\"1643\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1619\" data-end=\"1643\"\u003ePerformance Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1644\" data-end=\"1902\"\u003e\n\u003cli data-start=\"1644\" data-end=\"1713\"\u003eImproved exhaust flow for enhanced horsepower and torque delivery\u003c\/li\u003e\n\u003cli data-start=\"1714\" data-end=\"1772\"\u003eFaster throttle response and sharper acceleration feel\u003c\/li\u003e\n\u003cli data-start=\"1773\" data-end=\"1847\"\u003eReduced system weight vs. factory exhaust (depending on material spec)\u003c\/li\u003e\n\u003cli data-start=\"1848\" data-end=\"1902\"\u003eEnhanced turbo sound and overall driver engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1904\" data-end=\"1907\"\u003e\n\u003ch3 data-start=\"1909\" data-end=\"1934\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1913\" data-end=\"1934\"\u003eWhat’s in the Box\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1935\" data-end=\"2141\"\u003e\n\u003cli data-start=\"1935\" data-end=\"1985\"\u003eFull exhaust system \u003c\/li\u003e\n\u003cli data-start=\"1986\" data-end=\"2024\"\u003eIntegrated valved muffler assembly\u003c\/li\u003e\n\u003cli data-start=\"2025\" data-end=\"2071\"\u003eAll required clamps, hardware, and gaskets\u003c\/li\u003e\n\u003cli data-start=\"2072\" data-end=\"2118\"\u003ePlug-and-play valve integration components\u003c\/li\u003e\n\u003cli data-start=\"2119\" data-end=\"2141\"\u003eInstallation guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2143\" data-end=\"2146\"\u003e\n\u003ch3 data-start=\"2148\" data-end=\"2171\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2152\" data-end=\"2171\"\u003eWhy This System\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2172\" data-end=\"2443\"\u003eThe G80 M3 and G82 M4 are engineered for precision—but the factory exhaust holds them back acoustically and emotionally. This system unlocks the true character of the S58, delivering a sound and performance profile that matches the car’s aggressive design and capability.\u003c\/p\u003e\n\u003cp data-start=\"2445\" data-end=\"2591\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eIf you want your M car to sound as serious as it performs—without sacrificing daily usability—this is the upgrade that brings everything together.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"border-token-border-default mt-2 border-t py-4 text-sm\"\u003e\n\u003cdiv class=\"flex flex-col justify-between gap-3 mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Velocity Performance Parts","offers":[{"title":"Default Title","offer_id":48269884522745,"sku":"14:200004889#g80 m3 g82 m4","price":3299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7497\/7273\/files\/G_CHASSIS_STAINLESS_FULL_EXHAUST8.webp?v=1776508505","url":"https:\/\/www.velocityperformanceparts.com\/products\/bmw-g80-g82-stainless-steel-valved-full-exhaust-system","provider":"Velocity Performance Parts","version":"1.0","type":"link"}