{"product_id":"mad-bmw-s58-catted-downpipes-m3-m4-g80-g82-g83-w-no-cel-guarantee-flex-section","title":"MAD BMW S58 Catted Downpipes M3 M4 G80 G82 G83 W\/ No CEL Guarantee \u0026 Flex Section","description":"\u003cp\u003eIntroducing the MAD S58 Catted Downpipe\u003c\/p\u003e\u003cp\u003eThe perfect upgrade for BMW enthusiasts looking to unlock more performance and a deeper, more aggressive exhaust note without triggering a check engine light. Crafted from high-quality 304 stainless steel, this downpipe is built to handle extreme heat and harsh driving conditions. The smooth piping transitions are designed for maximum exhaust flow, delivering noticeable gains in horsepower, torque, and throttle response. Equipped with 300 cell high-flow catalytic converters, the MAD S58 Catted Downpipe improves engine sound and overall drivability while keeping the check engine light off. It bolts directly to the factory exhaust system with no cutting or welding required, making installation quick and hassle-free. It’s also fully compatible with most aftermarket exhaust systems, giving you the freedom to customize your build.\u003c\/p\u003e\u003cp\u003eNo CEL guarantee\u003c\/p\u003e\u003cp\u003eIf you get a check engine light related to the catalytic converter, MAD will replace the downpipe for free. Don’t settle for stock performance. Upgrade to the MAD S58 300 Cell Race Catted Downpipes and experience the full potential of your BMW. Race use only\u003c\/p\u003e\u003cp\u003eFeatures\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e300 CEL catalytic converters\u003c\/li\u003e\n\u003cli\u003eNo check engine light guarantee\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 drone\u003c\/li\u003e\n\u003cli\u003eUp to 30HP increase on stock turbos, even more with upgraded setups\u003c\/li\u003e\n\u003cli\u003eLifetime warranty on defects and fitment\u003c\/li\u003e\n\u003cli\u003e90-day return period\u003c\/li\u003e\n\u003cli\u003eShips in 1 to 2 business days\u003c\/li\u003e\n\u003cli\u003eSpot-on fitment\u003c\/li\u003e\n\u003cli\u003eFlex section for added durability\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFitment\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2021 and up BMW M3 G80\u003c\/li\u003e\n\u003cli\u003e2021 and up BMW M4 G82 and G83\u003c\/li\u003e\n\u003cli\u003e2023 and up BMW M2 G87\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDisclaimer\u003c\/p\u003e\u003cp\u003eFor race use only. This product is not certified for use on public roads and may not comply with local regulations. Always check your local laws before installing.\u003c\/p\u003e","brand":"MAD","offers":[{"title":"Default Title","offer_id":45722510327970,"sku":"MAD-121","price":2098.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0527\/9953\/7314\/files\/WhatsApp_Image_2025-07-29_at_10.19.19_81cfd151__59452.1753981046.jpg?v=1753992029","url":"https:\/\/broxtuning.ca\/products\/mad-bmw-s58-catted-downpipes-m3-m4-g80-g82-g83-w-no-cel-guarantee-flex-section","provider":"Brox Tuning","version":"1.0","type":"link"}