{"product_id":"mad-bmw-s58-catted-downpipes-m2-m3-m4-g87-g80-g82-g83-w-no-cel-guarantee-flex-section","title":"MAD BMW S58 Catted 300 CEL Downpipes M2 M3 M4 G87 G80 G82 G83 W\/ No CEL Guarantee \u0026 Flex Section","description":"\u003cp\u003e\u003cstrong\u003eIn Stock:\u003c\/strong\u003e Ships in 1-2 business days\u003cbr\u003e\u003cstrong\u003eAvailable to Order:\u003c\/strong\u003e Ships in 3-4 Weeks\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLooking to wake up your S58 without sacrificing peace of mind?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe factory S58 downpipes limit exhaust flow, restricting turbo efficiency and muting both power and sound. While many aftermarket options increase performance, they often come with the risk of a persistent check engine light.\u003c\/p\u003e\n\u003cp\u003eThe MAD S58 300 Cell Race Catted Downpipes are designed to deliver substantial performance gains, faster turbo response, and a more aggressive exhaust note while utilizing premium 300-cell high-flow catalytic converters. Best of all, they're backed by MAD's 2-Year No Check Engine Light Guarantee, giving you confidence long after installation.\u003c\/p\u003e\n\u003cp\u003eMore Power.\u003cbr\u003eNo CEL.\u003cbr\u003eBuilt to Last.\u003c\/p\u003e\n\u003cp\u003e⸻\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy these Downpipes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 300-cell high-flow catalytic converters dramatically reduce exhaust restriction compared to the factory downpipes, allowing the S58's twin turbos to spool faster and operate more efficiently.\u003c\/p\u003e\n\u003cp\u003eOn tuned vehicles with stock turbos, gains of up to 30 horsepower are possible, with even greater performance potential on upgraded turbo setups.\u003c\/p\u003e\n\u003cp\u003eUnlike many catted downpipes on the market, MAD stands behind these with a 2-Year No Check Engine Light Guarantee. If a catalyst-related check engine light occurs during the warranty period, MAD will replace the downpipes at no charge.\u003c\/p\u003e\n\u003cp\u003eCombined with smooth mandrel bends, integrated flex sections, and OEM-style fitment, these downpipes are engineered for both performance and long-term reliability.\u003c\/p\u003e\n\u003cp\u003eMore airflow.\u003cbr\u003eFaster spool.\u003cbr\u003eConfidence included.\u003c\/p\u003e\n\u003cp\u003e⸻\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Direct bolt-on replacement for factory downpipes\u003cbr\u003e• Compatible with OEM and most aftermarket exhaust systems\u003cbr\u003e• No cutting or welding required\u003cbr\u003e• Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e⸻\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• G80 M3 \u003cbr\u003e• G81 M3 \u003cbr\u003e• G82 M4 \u003cbr\u003e• G83 M4 \u003cbr\u003e• G87 M2 \u003c\/p\u003e\n\u003cp\u003e⸻\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Premium 300-Cell High-Flow Catalytic Converters\u003cbr\u003e• T304 Stainless Steel Construction\u003cbr\u003e• Precision Welded for Maximum Durability\u003cbr\u003e• Smooth Mandrel Bends for Maximum Exhaust Flow\u003cbr\u003e• Integrated Flex Sections for Reduced Stress and Increased Longevity\u003cbr\u003e• OEM-Style Direct Bolt-On Fitment\u003c\/p\u003e\n\u003cp\u003e⸻\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• MAD S58 300 Cell Race Catted Downpipes\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequired for Installation (Not Included):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• BMW Downpipe Gasket – Part Number \u003cstrong\u003e18308053348\u003c\/strong\u003e (Quantity: 2)\u003c\/p\u003e\n\u003cp\u003e⸻\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty \u0026amp; Returns\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Eligible for a 90-day return window if unused, uninstalled, and in original condition\u003cbr\u003e• 2-Year No Check Engine Light Guarantee for catalyst-related CELs\u003cbr\u003e• Lifetime warranty against manufacturer defects and fitment issues\u003c\/p\u003e\n\u003cp\u003e⸻\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Intended for off-road \/ motorsport use only\u003cbr\u003e• Race-use product\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e⸻\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomaz Approved\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf you're looking for the ideal middle ground between factory reliability and serious S58 performance, these are one of the easiest upgrades to recommend.\u003c\/p\u003e\n\u003cp\u003eThe combination of faster turbo response, increased horsepower, improved exhaust sound, and MAD's No CEL Guarantee makes these an outstanding option for enthusiasts who want to enjoy the benefits of upgraded downpipes without constantly worrying about warning lights.\u003c\/p\u003e\n\u003cp\u003ePerformance you can feel. Confidence you can trust.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eEmissions Disclaimer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is not legal for sale or use on pollution-controlled vehicles operated on public roads, highways, or streets. It is intended for off-road, race, or closed-course competition use only, where such modifications are permitted.\u003c\/p\u003e\n\u003cp\u003eBy purchasing this product, you acknowledge and agree that:\u003c\/p\u003e\n\u003cp\u003e• You are responsible for compliance with all applicable emissions laws and regulations.\u003c\/p\u003e\n\u003cp\u003e• MAD, Automaz Collective, and their affiliates disclaim any liability for improper or unlawful use of this product.\u003c\/p\u003e\n\u003cp\u003e• Use of this part on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws.\u003c\/p\u003e\n\u003cp\u003ePlease check your local laws before purchase and installation.\u003c\/p\u003e","brand":"Automaz Collective","offers":[{"title":"Default Title","offer_id":43878547128379,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5388\/1403\/files\/IMG_0881.jpg?v=1785305344","url":"https:\/\/automazcollective.com\/products\/mad-bmw-s58-catted-downpipes-m2-m3-m4-g87-g80-g82-g83-w-no-cel-guarantee-flex-section","provider":"Automaz Collective","version":"1.0","type":"link"}