{"product_id":"hks-gr-supra-b58-front-pipe-w-metal-catalyzer","title":"HKS GR Supra B58 Front Pipe w\/ Metal Catalyzer","description":"\u003ch4\u003e\u003cem\u003e\u003cstrong\u003eNot CARB Legal\u003c\/strong\u003e\u003c\/em\u003e\u003c\/h4\u003e\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\n\n\u003cp style=\"margin:1em 0\"\u003eThe HKS Front Pipe with Metal Catalyzer is a high-performance exhaust upgrade designed specifically for the Toyota GR Supra equipped with the B58 engine. This unit replaces the factory front pipe and catalytic converter, significantly improving exhaust flow while retaining a high-quality metal catalyst.\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eEngineered with HKS’s motorsports expertise, the integrated metal catalyzer features approximately 150 catalyst cells compared to the factory unit’s roughly 600 cells. This reduction in cell density lowers exhaust back-pressure, resulting in improved throttle response and increased engine output. HKS testing reports power gains of approximately +13 PS with this upgrade alone.\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eConstructed from durable SUS304 stainless steel, the front pipe offers excellent heat resistance, corrosion protection, and long-term reliability. The large-diameter piping (approximately 85 mm) further enhances exhaust efficiency and pairs well with both stock and aftermarket exhaust systems. Sound levels increase slightly compared to stock, delivering a sportier exhaust note without excessive harshness.\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eThe HKS metal catalyzer is designed to meet modern emissions standards in many markets, using an optimized precious metal formulation and WLTC testing. However, it is not CARB-certified and may not be legal for use in California or regions with strict emissions regulations.\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eDirect-fit front pipe with integrated high-flow metal catalytic converter\u003c\/li\u003e\n\u003cli\u003eDesigned for Toyota GR Supra B58 models\u003c\/li\u003e\n\u003cli\u003eApprox. 150-cell metal catalyzer for improved exhaust flow\u003c\/li\u003e\n\u003cli\u003eReported power increase of around +13 PS\u003c\/li\u003e\n\u003cli\u003eSUS304 stainless steel construction\u003c\/li\u003e\n\u003cli\u003eApprox. 85mm pipe diameter\u003c\/li\u003e\n\u003cli\u003eSportier exhaust tone compared to stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\u003cli\u003e2020+ GR Supra w\/B58 3.0L\u003c\/li\u003e\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":62738946588812,"sku":"hks33005-AT009","price":2280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/HKS_GR_Supra_B58_Front_Metal_Catalyzer1.png?v=1791949603","url":"https:\/\/vpmotorworks.com\/products\/hks-gr-supra-b58-front-pipe-w-metal-catalyzer","provider":"VP Motorworks","version":"1.0","type":"link"}