{"title":"Engine: S58","description":"BMW S58 parts grouped by engine code for G8X M3\/M4 and G87 M2 fitment paths.","products":[{"product_id":"mad-bmw-s58-3-5-fat-boy-downpipes-m2-m3-m4-g87-g80-g82-g83","title":"MAD BMW S58 3.5\" Fat Boy Downpipes M2 M3 M4 G87 G80 G82 G83","description":"\u003cp\u003e\u003cstrong\u003eThe MAD 3.5\" S58 Fat boy is the largest BMW S58 catless downpipe on the market!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUpgrade from the stock S58 downpipes to the MAD 3.5\" Fat Boy  S58 catless downpipes for maximum airflow, power, and sound!\u003c\/p\u003e\n\u003cp\u003eUpgrade to the MAD BMW 3.5\" Fat Boy  S58 downpipes to eliminate the backpressure caused by your stock catalytic converters. By upgrading to our downpipes, your turbos can now spool faster and achieve maximum power. As a bonus, your car will sound a lot nicer as well.\u003c\/p\u003e\n\u003cp\u003eExpect up to a 30HP increase on a tuned BMW S58 with stock turbos, even more on cars with upgraded turbos.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe flex pipe Section will help reduce the stress and unwanted vibration from the downpipes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLargest 3.5'' Diameter piping compared to standard 3''\u003c\/li\u003e\n\u003cli\u003eCompatible with right-hand drive and left-hand drive vehicles\u003c\/li\u003e\n\u003cli\u003eSmooth bends for maximum airflow without any drone\u003c\/li\u003e\n\u003cli\u003eUp to 30HP increase on the stock turbos, even more on upgraded turbos\u003c\/li\u003e\n\u003cli\u003eLifetime warranty on defects and fitment\u003c\/li\u003e\n\u003cli\u003eAll orders ship in 1-2 business days\u003c\/li\u003e\n\u003cli\u003eSpot on fitment\u003c\/li\u003e\n\u003cli\u003eFlex section\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFitment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2021+ BMW M3 G80\u003c\/li\u003e\n\u003cli\u003e2021+ BMW M4 G82 G83\u003c\/li\u003e\n\u003cli\u003e2023+ BMW M2 G87\u003c\/li\u003e\n\u003cli\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSKU:\u003c\/p\u003e\n\u003cp\u003eMAD-047\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\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\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003enot legal for sale or use on pollution-controlled vehicles\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperated on public roads, highways, or streets. It is\u003cspan\u003e \u003c\/span\u003e\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\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\n\u003cul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\"\u003e\n\u003cli data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"\u003e\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003eYou are\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003eresponsible for compliance\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith all applicable emissions laws and regulations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"\u003e\n\u003cp data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"\u003eMAD and its affiliates\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003edisclaim any liability\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor improper or unlawful use of this product.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"\u003e\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\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\"\u003eFederal Clean Air Act (42 U.S.C. § 7522)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand similar state laws.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\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":"MAD","offers":[{"title":"Default Title","offer_id":45808631578821,"sku":null,"price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/9841\/1461\/files\/PhotoRoom_001_20240405_123431__45281.jpg?v=1770935832"},{"product_id":"mad-s58-catless-downpipes","title":"MAD S58 Catless Downpipes","description":"These catless downpipes for the BMW S58 engine maximize exhaust flow by eliminating backpressure, leading to quicker turbo spool, increased horsepower and a more pronounced exhaust sound. Made from high‑quality 304 stainless steel with smooth bends and a flex section, they bolt on directly to BMW M3 G80\/G81, M4 G82\/G83 and M2 G87 models","brand":"MAD","offers":[{"title":"Default","offer_id":45809463754949,"sku":"MAD-032","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/9841\/1461\/files\/WhatsApp_Image_2025-03-19_at_11.03.56_AM__46253.1766606427.386.513.jpg?v=1770945396"},{"product_id":"mad-s58-fat-boy-3-5inch-catless-downpipes","title":"MAD S58 Fat Boy 3.5\" Catless Downpipes","description":"With a large 3.5-inch diameter, these Fat Boy catless downpipes free up exhaust flow and lower backpressure, generating a throatier exhaust note and up to 30 HP on a tuned S58 engine. They are built from premium stainless steel with smooth bends and a flex section and fit the 2021+ BMW M3 G80\/G81, M4 G82\/G83 and 2023+ M2 G87","brand":"MAD","offers":[{"title":"Default","offer_id":45809463787717,"sku":"MAD-047","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/9841\/1461\/files\/PhotoRoom_001_20240405_123431__45281.1712353069.386.513.jpg?v=1770945401"},{"product_id":"mad-s58-resonated-downpipes","title":"MAD S58 Resonated Downpipes","description":"These resonated downpipes strike a balance between performance and refinement, reducing exhaust rasp while still improving throttle response and turbo spool. Constructed from high‑grade 304 stainless steel with a flex section, they bolt directly onto BMW M3 G80\/G81, M4 G82\/G83 and M2 G87 models","brand":"MAD","offers":[{"title":"Default","offer_id":45809463820485,"sku":"MAD-075","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/9841\/1461\/files\/2075-3__62245.1696866672.386.513.jpg?v=1770945408"},{"product_id":"mad-s58-catted-downpipes","title":"MAD S58 Catted Downpipes","description":"Featuring high‑flow catalytic converters and premium 304 stainless construction, these S58 downpipes increase horsepower and torque while remaining emissions compliant. They utilize smooth, mandrel‑bent piping for maximum flow and bolt directly to the factory exhaust without cutting or welding","brand":"MAD","offers":[{"title":"Default","offer_id":45809463853253,"sku":"MAD-051","price":569.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/9841\/1461\/files\/Photoroom_001_20250313_143044__66981.1742408256.386.513.jpg?v=1770945414"},{"product_id":"mad-s58-catted-downpipes-no-cel-1","title":"MAD S58 Catted Downpipes w\/ No CEL Guarantee","description":"These premium downpipes feature 300‑cell high‑flow catalytic converters that improve power and sound while preventing check‑engine lights. Made from 304 stainless steel, they bolt directly to the stock exhaust system and are designed for BMW M3 G80\/G81, M4 G82\/G83 and M2 G87","brand":"MAD","offers":[{"title":"Default","offer_id":45809467228357,"sku":"MAD-121","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/9841\/1461\/files\/WhatsApp_Image_2025-07-29_at_10.19.19_81cfd151__59452.1753981046.386.513.jpg?v=1770945675"},{"product_id":"mad-s58-skid-plate-g80-g82-g87-1","title":"MAD S58 Oil Cooler Guard Skid Plate (G80\/G82\/G87)","description":"Protect the vulnerable oil cooler and underbody components of your S58‑powered BMW M3\/M4\/M2 with this high‑grade aluminum skid plate. It features a durable wrinkle‑black finish, precise fitment that retains the OEM air dam for optimal airflow, corrosion‑resistant powder coat and bolt‑on installation with included hardware","brand":"MAD","offers":[{"title":"Default","offer_id":45809467293893,"sku":"MAD-099","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/9841\/1461\/files\/Photoroom_000_20241212_121529__64168.1734036733.386.513.jpg?v=1770945759"},{"product_id":"mhd-super-tuning-license-s58","title":"MHD Super Tuning License – S58","description":"This comprehensive license package provides full DME remapping for S58 engines via the MHD Flasher F+G Series app. It includes the Flasher, Monitor and Map packs and offers quick flash times, code reading\/deletion, adjustable exhaust burble, antilag and on‑the‑fly map switching","brand":"MHD Tuning","offers":[{"title":"Default","offer_id":45809467654341,"sku":"MHD-S58-SUPER","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/9841\/1461\/files\/MHD_Super_License_2048x_30d25b33-a95d-4323-85c7-eddb4b99a570.png?v=1778314078"}],"url":"https:\/\/bmdperformance.com\/collections\/engine-s58.oembed","provider":"My Store","version":"1.0","type":"link"}