{"product_id":"bmw-m3-m4-g80-s58-sport-cats","title":"BMW S58 Sport Catalysts","description":"\u003cp\u003e\u003cstrong\u003eHigh-flow S58 sport catalysts that fit them all.\u003c\/strong\u003e A direct bolt-on set of 200-cell metallic sport cats for the BMW S58, TIG-welded from mandrel-bent 3.5\" \/ 89 mm T304 stainless and test-fitted in-house. Frees up flow while keeping emissions equipment in place — street-friendly and code-free on a supporting tune.\u003c\/p\u003e\u003ch3\u003eFitment — BMW S58 (2021–present)\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:8px 0 4px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.16);\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.16);\"\u003eModels\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eG80\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eM3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eG82 \/ G83\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eM4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eG87\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eM2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eF97\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eX3 M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eF98\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.08);\"\u003eX4 M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp style=\"font-size:.9em;\"\u003eOne set fits every S58 car via the OEM mounting points.\u003c\/p\u003e\u003ch3\u003eWhy owners choose OKTAN\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster spool \u0026amp; sharper throttle\u003c\/strong\u003e — less back-pressure, earlier boost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeeper, more aggressive tone\u003c\/strong\u003e with no cabin drone at cruise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnlocks your tune\u003c\/strong\u003e beyond the restrictive OEM catalyst.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue bolt-on\u003c\/strong\u003e — no cutting or welding.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T304 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalyst:\u003c\/strong\u003e 200-cell high-flow metallic sport cats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiping:\u003c\/strong\u003e 3.5\" \/ 89 mm mandrel-bent, back-purged TIG welds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange:\u003c\/strong\u003e CNC-machined V-band\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensors:\u003c\/strong\u003e OEM O2 positions retained\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e lifetime against manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eMade to order, free tracked US shipping, dispatched in 10–14 days. Fitment confirmed before you buy.\u003c\/em\u003e\u003c\/p\u003e","brand":"OKTAN","offers":[{"title":"200 Cell High-Flow","offer_id":48747999002869,"sku":"SC-S58-35","price":1290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/6868\/5557\/files\/pexels-photo-31042165.jpg?v=1787608319","url":"https:\/\/oktanperformance.com\/products\/bmw-m3-m4-g80-s58-sport-cats","provider":"My Store","version":"1.0","type":"link"}