{"product_id":"s58-3-5-inch-catless-downpipe","title":"S58 3.5-Inch Catless Downpipe","description":"The MAD Fat Boy is a 3.5-inch catless downpipe set engineered to maximize performance for the BMW S58 engine, specifically fitting 2021+ BMW M3 (G80), 2021+ BMW M4 (G82\/G83), and 2023+ BMW M2 (G87) models. By eliminating the backpressure of stock catalytic converters, these downpipes allow for significantly improved turbo response and higher peak power potential.\n\nFeaturing a 3.5-inch diameter that exceeds standard 3-inch alternatives, the system uses smooth, precision-formed bends to optimize exhaust flow. An integrated flex section is built into the construction to dampen engine vibrations and reduce stress on the exhaust system, ensuring long-term durability. This kit is fully compatible with both right-hand and left-hand drive vehicles.\n\nDesigned as a direct performance upgrade, these downpipes support increased power output on both stock and upgraded turbo setups. The manufacturer includes a lifetime warranty covering defects and fitment to ensure consistent quality.","brand":"MAD","offers":[{"title":"Default Title","offer_id":52662867001656,"sku":"MAD-047","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687072349.png?v=1784321633","url":"https:\/\/store.motormia.co\/products\/s58-3-5-inch-catless-downpipe","provider":"MOTORMIA","version":"1.0","type":"link"}