{"product_id":"mad-bmw-b58-2025-gen-3-m340-m440-4-5-downpipe-catless","title":"MAD BMW B58 2025+ Gen 3 M340 M440 4.5\" Downpipe Catless","description":"\u003cp data-start=\"0\" data-end=\"313\"\u003eEnhance your BMW's performance with the MAD BMW B58 Gen 3 Catless Downpipe, specifically engineered for the 2025+ BMW M340 \u0026amp; M440. Crafted from premium 304 stainless steel, this 4.5-inch downpipe guarantees optimal exhaust flow, durability, and resistance to corrosion, providing the absolute best quality and longevity.\u003c\/p\u003e\r\r\n\u003cp data-start=\"315\" data-end=\"646\"\u003eBy eliminating restrictive factory catalytic converters, the MAD catless downpipe significantly boosts horsepower, sharpens throttle response, and reduces turbo lag, delivering an exhilarating driving experience. Precision-engineered welds and exact fitment ensure a seamless, bolt-on installation without hassles or modifications.\u003c\/p\u003e\r\r\n\u003cp data-start=\"648\" data-end=\"870\"\u003eEnjoy an aggressive, sporty exhaust note and unparalleled performance gains. The MAD downpipe is a must-have upgrade for both daily-driven enthusiasts and track-focused drivers seeking to unlock their BMW’s full potential.\u003c\/p\u003e\r\r\n\u003cp data-start=\"872\" data-end=\"881\"\u003eFeatures:\u003c\/p\u003e\r\r\n\u003cul data-start=\"883\" data-end=\"1196\"\u003e\r\r\n\u003cli data-start=\"883\" data-end=\"952\"\u003e\r\r\n\u003cp data-start=\"885\" data-end=\"952\"\u003eHigh-grade 304 stainless steel for unmatched quality and durability\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003cli data-start=\"953\" data-end=\"1021\"\u003e\r\r\n\u003cp data-start=\"955\" data-end=\"1021\"\u003e4.5-inch piping diameter for improved exhaust flow and performance\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003cli data-start=\"1022\" data-end=\"1066\"\u003e\r\r\n\u003cp data-start=\"1024\" data-end=\"1066\"\u003eSignificant boost in horsepower and torque\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003cli data-start=\"1067\" data-end=\"1117\"\u003e\r\r\n\u003cp data-start=\"1069\" data-end=\"1117\"\u003eEnhanced throttle response and reduced turbo lag\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003cli data-start=\"1118\" data-end=\"1161\"\u003e\r\r\n\u003cp data-start=\"1120\" data-end=\"1161\"\u003eAggressive, deep, and sporty exhaust tone\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003cli data-start=\"1162\" data-end=\"1196\"\u003e\r\r\n\u003cp data-start=\"1164\" data-end=\"1196\"\u003eEasy direct bolt-on installation\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003c\/ul\u003e\r\r\n\u003cp data-start=\"1198\" data-end=\"1321\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eUpgrade to MAD quality—experience superior performance, unmatched reliability, and thrilling sound for your 2025+ BMW M340 \u0026amp; M440.\u003c\/p\u003e\r\r\n\u003cp data-start=\"1198\" data-end=\"1321\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e \u003c\/p\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\" data-pm-slice=\"1 1 []\"\u003eFitment:\u003c\/p\u003e\r\r\n\u003cp data-renderer-start-pos=\"11\"\u003eDoes not fit euro models (check downpipe flange design before ordering)\u003c\/p\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003e2025+ BMW M340\u003c\/p\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003e2025+ BMW M440\u003c\/p\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\" data-pm-slice=\"1 1 []\"\u003e2025+ BMW X3 G45 M50\u003c\/p\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003e2025+ BMW X4 G46 M50\u003c\/p\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003e \u003c\/p\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\" data-pm-slice=\"1 1 []\"\u003e\u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003eEmissions Disclaimer:\u003c\/strong\u003e\u003cbr data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\"\u003eThis product is \u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003enot legal for sale or use on pollution-controlled vehicles\u003c\/strong\u003e operated on public roads, highways, or streets. It is \u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003eintended for off-road, race, or closed-course competition use only\u003c\/strong\u003e, where such modifications are permitted.\u003c\/p\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003eBy purchasing this product, you acknowledge and agree that:\u003c\/p\u003e\r\r\n\u003cul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\"\u003e\r\r\n\u003cli data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003eYou are \u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003eresponsible for compliance\u003c\/strong\u003e with all applicable emissions laws and regulations.\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003cli data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003eMAD and its affiliates \u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003edisclaim any liability\u003c\/strong\u003e for improper or unlawful use of this product.\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003cli data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003eUse of this part on public roads may violate the \u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003eFederal Clean Air Act (42 U.S.C. § 7522)\u003c\/strong\u003e and similar state laws.\u003c\/p\u003e\r\r\n\u003c\/li\u003e\r\r\n\u003c\/ul\u003e\r\r\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003ePlease check your local laws before purchase and installation.\u003c\/p\u003e","brand":"Mastery of Art and Design","offers":[{"title":"Default Title","offer_id":47901199663322,"sku":"MAD-126","price":259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/2306\/1978\/files\/WhatsApp_Image_2025-05-16_at_11.04.02_c680f6c2__42110.1749140002.386.513_7a0a62d4-b030-4730-86e7-37a658c62e29.jpg?v=1779311947","url":"https:\/\/www.zero-offset.com\/products\/mad-bmw-b58-2025-gen-3-m340-m440-4-5-downpipe-catless","provider":"Zero Offset","version":"1.0","type":"link"}