{"product_id":"mad-bmw-f-g-chassis-5-b58-catted-downpipe-m240-340-m340-440-m440-540-w-no-cel-guarantee-bracket-mad-120","title":"MAD BMW F \u0026 G Chassis 5\" B58 Catted Downpipe W\/ No CEL Guarantee \u0026 Bracket","description":"\u003cp\u003e\u003cbr\u003eUpgrade your stock B58 downpipe to the MAD B58 Catted Downpipe for more power, better sound, and guaranteed reliability without triggering a check engine light.\u003c\/p\u003e\n\u003cp\u003eThe MAD Catted B58 Downpipe is the ideal performance upgrade for BMW owners who want more out of their car without the hassle. It's made from premium 304 stainless steel and built to handle extreme heat and tough driving conditions.\u003c\/p\u003e\n\u003cp\u003eThe smooth piping design allows for maximum exhaust flow, which translates into more horsepower, better torque, and sharper throttle response. The 300-cell high-flow catalytic converter gives you noticeable gains and a more aggressive sound, all while keeping the check engine light off.\u003c\/p\u003e\n\u003cp\u003eInstallation is simple with a direct bolt-on fit to the stock exhaust system. No cutting or welding needed. It's also fully compatible with most aftermarket exhaust setups, giving you the flexibility to build the setup you want.\u003c\/p\u003e\n\u003cp\u003eNo check engine light guarantee\u003cbr\u003eIf you get a CEL related to the catalytic converter, MAD will replace the downpipe for free.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eWarranty coverage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \"No CEL\" guarantee is valid for only one year from the date of purchase.\u003c\/p\u003e\n\u003cp\u003eThe lifetime warranty still applies in cases of manufacturer defects, such as cracks in the pipe or welds.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eRace use only\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eNo CEL guarantee or it's replaced free\u003c\/p\u003e\n\u003cp\u003eCompatible with right-hand drive and left-hand drive vehicles\u003c\/p\u003e\n\u003cp\u003eSmooth bends for maximum airflow without drone\u003c\/p\u003e\n\u003cp\u003eGains up to 30 horsepower on stock turbos and even more with upgraded ones\u003c\/p\u003e\n\u003cp\u003eLifetime warranty on the downpipe\u003c\/p\u003e\n\u003cp\u003e1-year warranty on the catalytic converter\u003c\/p\u003e\n\u003cp\u003e90-day return policy\u003c\/p\u003e\n\u003cp\u003eShips in 1 to 2 business days\u003c\/p\u003e\n\u003cp\u003eDirect bolt-on fitment\u003c\/p\u003e\n\u003cp\u003eFlex section for durability\u003c\/p\u003e\n\u003cp\u003e300 cell high-flow catalytic converter\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e2015 and up BMW M240i and XDrive\u003c\/p\u003e\n\u003cp\u003e2016 to 2019 BMW 340i and XDrive\u003c\/p\u003e\n\u003cp\u003e2020 to 2024 BMW M340i and XDrive (does not fit 2025+)\u003c\/p\u003e\n\u003cp\u003e2016 and up BMW 440i and XDrive\u003c\/p\u003e\n\u003cp\u003e2016 and up BMW 540i and XDrive\u003c\/p\u003e\n\u003cp\u003e2016 and up BMW 740i and XDrive\u003c\/p\u003e\n\u003cp\u003e2017 to 2020 BMW X3 M40\u003c\/p\u003e\n\u003cp\u003e2017 to 2020 BMW X4 M40\u003c\/p\u003e\n\u003cp\u003e2019 and up G05 BMW X5 40i and XDrive\u003c\/p\u003e\n\u003cp\u003e2019 and up G07 BMW X7 40i and XDrive\u003c\/p\u003e\n\u003cp\u003e2019 and up G29 BMW Z4 M40i\u003c\/p\u003e\n\u003cp\u003e2019 and up Toyota Supra 3.0L\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eDisclaimer\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"MAD","offers":[{"title":"Default Title","offer_id":49600661160129,"sku":"MAD-120","price":949.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/files\/WhatsApp_Image_2025-07-29_at_10.19.04_14df2edd__82456.jpg?v=1760390194","url":"https:\/\/www.urotuning.com\/products\/mad-bmw-f-g-chassis-5-b58-catted-downpipe-m240-340-m340-440-m440-540-w-no-cel-guarantee-bracket-mad-120","provider":"UroTuning","version":"1.0","type":"link"}