{"product_id":"hks-gr-supra-b58-super-turbo-muffler-main","title":"HKS GR Supra B58 Super Turbo Muffler Main","description":"\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cp style=\"margin:1em 0\"\u003eRevamp your Toyota \u003cstrong\u003eGR Supra B58\u003c\/strong\u003e with the \u003cstrong\u003eHKS Super Turbo Muffler\u003c\/strong\u003e — a high‑quality cat‑back exhaust engineered for better exhaust flow, a sportier sound, and everyday drivability.\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eWhether you’re after a more engaging exhaust tone, improved throttle response, or a performance upgrade that still respects everyday usability and legal requirements, this HKS exhaust delivers a well‑rounded package that fits right into the spirit of the Toyota GR Supra.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eEngineered for Performance \u0026amp; Daily Use\u003c\/h4\u003e\n\u003cp style=\"margin:1em 0\"\u003eThe Super Turbo Muffler is crafted from \u003cstrong\u003epremium SUS304L stainless steel\u003c\/strong\u003e for durability and corrosion resistance, giving you a long‑lasting performance upgrade without sacrificing reliability. Its \u003cstrong\u003edual 80–70mm center piping\u003c\/strong\u003e and \u003cstrong\u003e110mm dual exhaust tips\u003c\/strong\u003e deliver optimized flow and an aggressive exhaust note that’s louder and richer than stock without going overboard.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eBalanced Sporty Sound\u003c\/h4\u003e\n\u003cp style=\"margin:1em 0\"\u003eWith a measured noise level of \u003cstrong\u003eapproximately 87dB\u003c\/strong\u003e (compared to stock 85dB), this muffler produces a \u003cstrong\u003edeeper, engaging tone\u003c\/strong\u003e — perfect for spirited driving while still being manageable for daily commutes. The system is designed to work seamlessly with the \u003cstrong\u003efactory exhaust valves\u003c\/strong\u003e, preserving your vehicle’s \u003cstrong\u003eNormal\/Sport\u003c\/strong\u003e mode switching.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eDirect Fit \u0026amp; Easy Installation\u003c\/h4\u003e\n\u003cp style=\"margin:1em 0\"\u003eThis exhaust system is a \u003cstrong\u003edirect‑fit cat‑back\u003c\/strong\u003e that connects right to the OEM mid‑pipe. It’s compatible with \u003cstrong\u003evehicles equipped with or without an OPF (gasoline particulate filter)\u003c\/strong\u003e, making it versatile for different GR Supra configurations. Installation simply involves cutting the stock muffler at the mid‑pipe service point.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eEU Certified \u0026amp; Street Legal\u003c\/h4\u003e\n\u003cp style=\"margin:1em 0\"\u003eUnlike some performance exhausts, the 31029‑AT004 comes with \u003cstrong\u003eEU certification\u003c\/strong\u003e, meaning it meets legal standards for street use in regions requiring approved systems — a big plus if you plan to drive your Supra daily or through inspection cycles.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eKey Specs\u003c\/h4\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e SUS304L stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eTip Diameter:\u003c\/strong\u003e 110mm (left \u0026amp; right)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eCenter Pipe:\u003c\/strong\u003e 80–70mm x 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eNoise Level:\u003c\/strong\u003e 87 dB (HKS) vs ~85 dB (stock)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eRoad Clearance:\u003c\/strong\u003e 125mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 23.9kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cem\u003e\u003cstrong\u003eNote: Unconfirmed fitment regarding Final Edition Models due to FE Brace\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eMaterial: SUS304L stainless steel\u003c\/li\u003e\n\u003cli\u003eTip Diameter: 110mm (left \u0026amp; right)\u003c\/li\u003e\n\u003cli\u003eCenter Pipe: 80–70mm x 2\u003c\/li\u003e\n\u003cli\u003eNoise Level: 87 dB (HKS) vs ~85 dB (stock)\u003c\/li\u003e\n\u003cli\u003eRoad Clearance: 125mm\u003c\/li\u003e\n\u003cli\u003eWeight: 23.9kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":62738923749516,"sku":"hks31029-AT004","price":2990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/HKS_GR_Supra_Super_Turbo_Muffler_Main2.png?v=1791949377","url":"https:\/\/vpmotorworks.com\/products\/hks-gr-supra-b58-super-turbo-muffler-main","provider":"VP Motorworks","version":"1.0","type":"link"}