{"product_id":"b58-4-5-catless-downpipe-bmw-b58-series","title":"B58 4.5\" Heatshield Catless Downpipe - BMW B58 Series","description":"\u003cp\u003eUpgrade your BMW B58 with our premium 4.5\" stainless steel downpipe, available in both race and high-flow catted versions for maximum performance and value.\u003c\/p\u003e\n\u003cp\u003eReplacing the restrictive factory downpipe with either our catless race version or 200-cell high-flow catalytic converter dramatically reduces exhaust backpressure. The result is quicker turbo spool, increased horsepower, improved throttle response, and a deeper, more aggressive exhaust sound.\u003c\/p\u003e\n\u003cp\u003eConstructed from hand-fabricated, TIG-welded 304 stainless steel, this downpipe features a full 4.5-inch design and a precision CNC-machined 304 stainless steel turbo flange for a smooth transition from the turbocharger to the mid-pipe. Every downpipe is built for exceptional durability, precise fitment, and long-lasting performance.\u003c\/p\u003e\n\u003cp\u003eThe race version includes a lifetime warranty, while the catted version is backed by a two-year warranty on the catalytic converter. All models are covered by our hassle-free fitment guarantee.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHandcrafted, TIG-welded 4.5\" 304 stainless steel construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvailable in catless race or 200-cell high-flow catted configurations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCNC-machined 304 stainless steel turbo flange for optimal exhaust flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReduces backpressure for faster turbo response and increased performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduces a deeper, more aggressive exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSmooth mandrel bends minimize turbulence and maximize exhaust flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with both factory and aftermarket cat-back exhaust systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDirect bolt-on installation for both left-hand-drive (LHD) and right-hand-drive (RHD) vehicles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower gains of up to 25–30 HP with supporting tuning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLifetime warranty on the race version\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo-year catalytic converter warranty on the catted version\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e2019–2023 BMW G20, G22 \u0026amp; G26 B58 M340i, M440i \u0026amp; xDrive\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2019–2022 BMW F22 B58 M240i \u0026amp; xDrive\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2021–2023 BMW G42 B58 M240i \u0026amp; xDrive\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2019–2023 BMW G05 B58 X5 40i \u0026amp; xDrive\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2019–2023 BMW G29 B58 Z4 M40i\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Carbon Lab","offers":[{"title":"Default Title","offer_id":46665558753441,"sku":null,"price":499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/6973\/0721\/files\/41472C47-D74B-456F-8EEB-5A8F2344A61F.jpg?v=1783490298","url":"https:\/\/thecarbonlab.net\/products\/b58-4-5-catless-downpipe-bmw-b58-series","provider":"The Carbon Lab","version":"1.0","type":"link"}