{"product_id":"mad-bmw-s58-catted-downpipes-m2-m3-m4-g87-g80-g82-g83-w-flex-section","title":"MAD BMW S58 Catted Downpipes M2 M3 M4 G87 G80 G82 G83 W\/ Flex Section","description":"\u003cp\u003eThe MAD S58 Catted Downpipes are the ideal upgrade for BMW owners who want more performance and a richer exhaust note without going fully catless. Built from premium 304 stainless steel, they're engineered to handle extreme heat and hard driving, while smooth piping transitions maximise exhaust flow for gains in horsepower, torque and throttle response.\u003c\/p\u003e\n\u003cp\u003eHigh-flow 200-cell Euro5 catalytic converters keep emissions in check while delivering minimal back-pressure, so you get a cleaner tone than a catless setup without giving up power. They bolt directly to the factory exhaust — no cutting or welding — and work with aftermarket exhaust systems too.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e200-cell Euro5 high-flow catalytic converters.\u003c\/li\u003e\n\u003cli\u003ePremium 304 stainless steel construction.\u003c\/li\u003e\n\u003cli\u003eCompatible with right- and left-hand-drive vehicles.\u003c\/li\u003e\n\u003cli\u003eSmooth bends for maximum airflow with no drone, plus a flex section.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 30 HP\u003c\/strong\u003e on stock turbos — even more with upgraded turbos.\u003c\/li\u003e\n\u003cli\u003eLifetime warranty on defects and fitment; 90-day return; ships in 1–2 business days; spot-on fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\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\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eRace use only. SKU: MAD-051.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmissions disclaimer:\u003c\/strong\u003e This product is not legal for sale or use on pollution-controlled vehicles operated on public roads and is intended for off-road, race, or closed-course competition use only. You are responsible for compliance with all applicable emissions laws; use on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws. Please check your local laws before purchase and installation.\u003c\/p\u003e\n\u003cp\u003eShips from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email \u003ca href=\"mailto:support@korespeed.com\"\u003esupport@korespeed.com\u003c\/a\u003e.\u003c\/p\u003e","brand":"MAD","offers":[{"title":"Default Title","offer_id":51574532538424,"sku":"MAD-051","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1775\/7947\/files\/Photoroom_000_20250313_143044__42930.1741901911.386.513.jpg?v=1764906754","url":"https:\/\/korespeed.com\/products\/mad-bmw-s58-catted-downpipes-m2-m3-m4-g87-g80-g82-g83-w-flex-section","provider":"KORE SPEED","version":"1.0","type":"link"}