{"title":"D5 A8 Exhaust","description":"\u003cp\u003eExhaust parts for the Audi D5 A8 3.0T. Vorsprung lists fitment on every product so you can match parts to your car.\u003c\/p\u003e","products":[{"product_id":"vorsprung-high-flow-cats-audi-ea825-4-0t-v8","title":"Vorsprung High-Flow Catted Downpipe, Audi EA825 C8 RS6, RS7 \u0026amp; D5 A8, S8 4.0T V8","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eB\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003euilt for Real Power, Without the Compromises - T\u003cspan\u003ehese catalysts are designed, tested, and validated to deliver reliable performance without concern for premature failure.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the \u003cstrong\u003ecatted\u003c\/strong\u003e version of this downpipe — factory-style catalytic converters stay in place (200-cell or 400-cell metallic), so you get a big flow and power increase while keeping a fuller, more street-oriented setup than a catless downpipe. Want maximum flow with the cats removed entirely? See our \u003ca href=\"\/products\/vorsprung-catless-downpipe-audi-ea825-4-0t-v8\"\u003eCatless Downpipe\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003cdiv style=\"background-color: #fff7ed; border: 1px solid #fdba74; border-radius: 8px; padding: 20px 24px; margin: 24px 0;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; font-weight: bold; margin-top: 0; margin-bottom: 14px; color: #0f172a;\"\u003eCatted vs. Catless — At a Glance\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.9rem; color: #334155;\"\u003e\n\u003ctr style=\"border-bottom: 1px solid #fdba74;\"\u003e\n\u003cth style=\"text-align: left; padding: 6px 8px;\"\u003e \u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 8px;\"\u003eThis Product: Catted\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 8px;\"\u003eCatless\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #fed7aa;\"\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003e\u003cstrong\u003eCatalytic converters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003e200-cell or 400-cell metallic\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eNone — fully open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003e\u003cstrong\u003eBest for\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eDaily-driven, tuned street cars\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eTrack cars, heavily tuned builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp\u003eOnce you move past a basic tune setup on the Audi 4.0T, you're asking a lot more from the factory cats, and honestly, they just can’t keep up. We’ve seen it time and time again: stock converters break down under the extra heat and pressure, and when they do, the risk isn’t just poor performance; it’s engine damage.\u003c\/p\u003e\n\u003cp\u003eWhether you’re looking to maximize performance on a heavily tuned build or simply craving a richer, more aggressive exhaust note from your factory setup, these high-flow catalysts deliver exactly what you need. By dramatically reducing backpressure compared to restrictive stock units, they unlock hidden horsepower and sharper throttle response for drivers pushing the limits, while instantly waking up the sound profile for those staying on the stock tune. It’s the perfect foundational upgrade to transform your vehicle's character, giving you the volume, spool, and performance you want without compromising on reliability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003ePrecision Catalysts: 200-Cell \u0026amp; 400-Cell Metallic Options\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eWhy Metallic Substrates? Because Balance Matters.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eEveryone loves the sound of a performance exhaust until the drone and fumes from cheap test pipes make your car feel like a straight-piped lawnmower. That is why we have engineered a solution offering two distinct paths to performance, both utilizing advanced metallic catalyst technology.\u003c\/p\u003e\n\u003cp\u003eWe know other downpipes look the same, but the catalyst is the heart of a good downpipe. That's why we prioritized the catalyst first. Even with 200-cell High-Flow catalysts, our customers report \u003cstrong\u003eno smell\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhether you choose our \u003cb\u003e200-cell High-Flow\u003c\/b\u003e or our \u003cb\u003e400-cell Ultra-Efficiency\u003c\/b\u003e options, you are getting a substrate we validated closely with our manufacturer to withstand the extreme thermal and mechanical loads of the 4.0 platform. Unlike the fragile ceramic cores used by budget brands to boost profits, our metallic substrates are engineered to survive sustained heat cycles and aggressive driving without crumbling.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe Choice is Yours:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e200-Cell Metallic:\u003c\/b\u003e The enthusiast’s choice for maximum auditory feedback and the least amount of back pressure. It strikes the perfect balance: dense enough to smooth out noise and harsh odors, yet open enough to support serious horsepower.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e400-Cell Metallic:\u003c\/b\u003e The ideal solution for drivers prioritizing maximum filtration and stealth. We have sourced a modern, high-flow 400-cell design that sheds the restrictive reputation of older GESI units, offering enhanced durability and flow characteristics that do not choke the engine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBy sourcing the highest-quality non-branded metallic cats available, we provide a setup built for reliable daily performance without the inflated \"brand tax\" price tag.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngineered for Endurance, Guaranteed for Life\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe understand that a lifetime warranty offers little value if you're frequently dealing with the inconvenience and expense of part replacement and re-installation labor. At Vorsprung Autowerk, our focus isn't just on warranty duration; it's on \u003cb\u003eproduct longevity and reliability\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe chose our materials and design specifically to eliminate the common failure cycle of 12-24 months. Our components are built right the first time to stay on your vehicle.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWe provide a Lifetime Warranty because we are confident you won't need to use it.\u003c\/b\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance, Reliability, and Thoughtful Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull flow path\u003c\/strong\u003e from top to bottom, with no tapering down to OEM size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetachable flanges\u003c\/strong\u003e to make installation a breeze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth transition\u003c\/strong\u003e to OEM-style lower flanges for easy fitment\u003c\/li\u003e\n\u003cli\u003eVorsprung\u003cstrong\u003e reinforced flange\u003c\/strong\u003e design\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision TIG-welded and back-purged\u003c\/strong\u003e for maximum strength\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-walled pipe ends\u003c\/strong\u003e to resist cracking over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra-thick 10mm stainless flanges\u003c\/strong\u003e, reinforced inside and out to prevent warping and \u003cstrong\u003etreated for an ultra-smooth mating surface\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat shielding\u003c\/strong\u003e included to control temps, reduce heat soak, and protect nearby components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304L stainless steel\u003c\/strong\u003e construction (\u003cstrong\u003eVorsprung Spec \u003c\/strong\u003e\u003cstrong\u003e2.0mm wall thickness\u003c\/strong\u003e) throughout, built to last\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese converters are rated to withstand temps well beyond what the 4.0T can throw at them.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note: These are currently made to order. Delivery times are approximately 30 days.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cdiv class=\"product-fitment-section\" style=\"margin: 20px 0; font-family: inherit;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; margin-bottom: 10px; font-weight: bold;\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cp\u003eThis high-flow catted downpipe is built for the Audi EA825 4.0T V8 platform: C8 RS6, C8 RS7, and D5 A8\/S8.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left; font-size: 0.95rem;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"border-bottom: 2px solid #ddd; background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRS6\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eC8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEA825 4.0T V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRS7\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eC8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEA825 4.0T V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eA8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eD5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEA825 4.0T V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eS8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eD5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEA825 4.0T V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 10px; font-size: 0.85rem; color: #555;\"\u003e\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Made to order, current lead time approximately 30 days. Confirm your exact trim against the fitment above before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eHigh-Flow Catted Downpipe FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between this and the Catless Downpipe?\u003c\/strong\u003e\u003cbr\u003eThis version keeps the catalytic converters in place (200-cell or 400-cell metallic), so you get a flow and power increase while keeping a fuller, more street-oriented setup than a fully catless downpipe. See our \u003ca href=\"\/products\/vorsprung-catless-downpipe-audi-ea825-4-0t-v8\"\u003eCatless Downpipe\u003c\/a\u003e if you want maximum flow with the cats removed entirely.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e200-cell or 400-cell, which should I choose?\u003c\/strong\u003e\u003cbr\u003e200-cell metallic is the enthusiast's choice for maximum flow and the least backpressure. 400-cell metallic prioritizes filtration and a more stock-like, stealthy sound. Both use the same metallic substrate engineered for the 4.0T platform.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long is the lead time?\u003c\/strong\u003e\u003cbr\u003eThese are currently made to order, with delivery times of approximately 30 days.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the warranty?\u003c\/strong\u003e\u003cbr\u003eLifetime Warranty, we build these to eliminate the common 12-24 month failure cycle other cats see on this platform.\u003c\/p\u003e\n\u003chr\u003e\n\u003cdiv style=\"background-color: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin: 30px 0;\"\u003e\n\u003ch3 style=\"font-size: 1.25rem; font-weight: bold; margin-top: 0; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.5px; color: #0f172a;\"\u003eWhy Buy From Us?\u003c\/h3\u003e\n\u003cul style=\"list-style-type: none; padding: 0; margin: 0;\"\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eEnthusiast Designed \u0026amp; Tested:\u003c\/strong\u003e Developed by people who actually drive and modify these cars.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eTested on Our Own Cars:\u003c\/strong\u003e If we wouldn't run it ourselves, we don't sell it.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eContinuous R\u0026amp;D:\u003c\/strong\u003e We continually develop and improve our products instead of relying on generic catalog parts.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eSupporting Audi Platform Development:\u003c\/strong\u003e Your purchase helps fund continued development of new parts for these chassis.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eReal Enthusiast Support:\u003c\/strong\u003e Get help from people who understand the platform, not ticket bots.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eSmall Team, Big Passion:\u003c\/strong\u003e Every order directly supports continued product development and innovation.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003ePerformance Without the Marketing Fluff:\u003c\/strong\u003e Purpose-built parts designed to perform.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: center; font-weight: bold; margin-top: 30px;\"\u003eDrive the difference. Drive Vorsprung.\u003c\/p\u003e\n","brand":"Vorsprung Autowerk","offers":[{"title":"200 Cell \/ Standard \/ C8 RS6\/RS7 D5 A8\/S8","offer_id":54246145818927,"sku":null,"price":1799.99,"currency_code":"USD","in_stock":true},{"title":"200 Cell \/ Dual Layer Quartz Lined (Superior Heat Management and Exhaust Evacuation) \/ C8 RS6\/RS7 D5 A8\/S8","offer_id":54246145851695,"sku":null,"price":2099.99,"currency_code":"USD","in_stock":true},{"title":"400 Cell \/ Standard \/ C8 RS6\/RS7 D5 A8\/S8","offer_id":54246145884463,"sku":null,"price":1899.99,"currency_code":"USD","in_stock":true},{"title":"400 Cell \/ Dual Layer Quartz Lined (Superior Heat Management and Exhaust Evacuation) \/ C8 RS6\/RS7 D5 A8\/S8","offer_id":54246145917231,"sku":null,"price":2199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5821\/3935\/files\/vorsprung-autowerk-200-cell-standard-sq7-sq8-rsq8-vorsprung-high-flow-cats-audi-c8-rs6-rs7-4m-sq8-rsq8-d5-a8-s8-ea825-4-0t-v8-49714267095343.jpg?v=1785216476"},{"product_id":"vorsprung-catless-downpipe-audi-ea825-4-0t-v8","title":"Vorsprung Catless Downpipe, Audi EA825 C8 RS6, RS7 \u0026amp; D5 A8, S8 4.0T V8","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eB\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003euilt for Real Power, Without the Compromises - T\u003cspan\u003eested and validated to deliver reliable performance without concern for premature failure.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the fully \u003cstrong\u003ecatless\u003c\/strong\u003e version of this downpipe — the factory catalytic converters are completely removed for maximum, unrestricted exhaust flow. Need to keep your cats for emissions compliance or a quieter, CEL-free daily driver? See our \u003ca href=\"\/products\/vorsprung-high-flow-cats-audi-ea825-4-0t-v8\"\u003eHigh-Flow Catted Downpipe\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003cdiv style=\"background-color: #fff7ed; border: 1px solid #fdba74; border-radius: 8px; padding: 20px 24px; margin: 24px 0;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; font-weight: bold; margin-top: 0; margin-bottom: 14px; color: #0f172a;\"\u003eCatless vs. Catted — At a Glance\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.9rem; color: #334155;\"\u003e\n\u003ctr style=\"border-bottom: 1px solid #fdba74;\"\u003e\n\u003cth style=\"text-align: left; padding: 6px 8px;\"\u003e \u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 8px;\"\u003eThis Product: Catless\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 8px;\"\u003eHigh-Flow Catted\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #fed7aa;\"\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003e\u003cstrong\u003eCatalytic converters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eNone — fully open\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003e200-cell or 400-cell metallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #fed7aa;\"\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003e\u003cstrong\u003eCheck Engine Light\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eLikely without a supporting tune\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eDesigned to run CEL-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #fed7aa;\"\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003e\u003cstrong\u003eStreet legal \/ emissions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eOff-road \/ competition use only\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eBuilt toward Euro 6 \/ EPA compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003e\u003cstrong\u003eBest for\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eTrack cars, heavily tuned builds\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eDaily-driven, tuned street cars\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #fef2f2; border: 1px solid #fca5a5; border-radius: 8px; padding: 18px 24px; margin: 24px 0;\"\u003e\n\u003cp style=\"margin: 0; color: #7f1d1d; font-size: 0.9rem;\"\u003e\u003cstrong\u003eOff-Road \/ Competition Use:\u003c\/strong\u003e Removing the factory catalytic converters will likely trigger a Check Engine Light without a supporting ECU tune, and takes the vehicle out of compliance with street emissions laws in many states and countries. Please check your local regulations before installing, and pair this downpipe with a tune to manage fueling and CEL codes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp\u003eOnce you move past a basic tune on the 4.0T, you're asking a lot more from the factory cats, and honestly, they just can’t keep up. We’ve seen it time and time again: stock converters break down under the extra heat and pressure, and when they do, the risk isn’t just poor performance, it’s engine damage.\u003c\/p\u003e\n\u003cp\u003eWe decided to build something better. Something we’d actually run on our own cars, and trust over the long haul.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngineered for Endurance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe understand that a lifetime warranty offers little value if you're frequently dealing with the inconvenience and expense of part replacement and reinstallation labor. At Vorsprung Autowerk, our focus isn't just on warranty duration; it's on \u003cb\u003eproduct longevity and reliability\u003c\/b\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance, Reliability, and Thoughtful Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull flow path\u003c\/strong\u003e from top to bottom, with no tapering down to OEM size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth transition\u003c\/strong\u003e to OEM-style lower flanges for easy fitment\u003c\/li\u003e\n\u003cli\u003eVorsprung\u003cstrong\u003e reinforced flange\u003c\/strong\u003e design\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision TIG-welded and back-purged\u003c\/strong\u003e for maximum strength\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-walled pipe ends\u003c\/strong\u003e to resist cracking over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra-thick 10mm stainless flanges\u003c\/strong\u003e, reinforced inside and out to prevent warping and \u003cstrong\u003etreated for an ultra-smooth mating surface\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat shielding\u003c\/strong\u003e included to control temps, reduce heat soak, and protect nearby components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304L stainless steel\u003c\/strong\u003e construction (\u003cstrong\u003eVorsprung Spec \u003c\/strong\u003e\u003cstrong\u003e2.0mm wall thickness\u003c\/strong\u003e) throughout, built to last\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note: These are made to order. Delivery times are approximately 30 days.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eThis catless downpipe is built for the Audi EA825 4.0T V8 platform: C8 RS6, C8 RS7, and D5 A8\/S8.\u003c\/p\u003e\n\u003cdiv class=\"product-fitment-section\" style=\"margin: 20px 0; font-family: inherit;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; margin-bottom: 10px; font-weight: bold;\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left; font-size: 0.95rem;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"border-bottom: 2px solid #ddd; background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRS6\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eC8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEA825 4.0T V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRS7\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eC8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEA825 4.0T V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eA8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eD5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEA825 4.0T V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eS8\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eD5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEA825 4.0T V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 10px; font-size: 0.85rem; color: #555;\"\u003e\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Made to order, current lead time approximately 30 days. This is the fully catless version, intended for off-road\/competition use only — confirm your exact trim against the fitment above before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eCatless Downpipe FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between this and the High-Flow Catted Downpipe?\u003c\/strong\u003e\u003cbr\u003eThis version fully removes the factory catalytic converters for maximum, unrestricted exhaust flow. Our \u003ca href=\"\/products\/vorsprung-high-flow-cats-audi-ea825-4-0t-v8\"\u003eHigh-Flow Catted Downpipe\u003c\/a\u003e keeps 200-cell or 400-cell metallic cats in place for a quieter, more street-oriented, CEL-free setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this legal for street use?\u003c\/strong\u003e\u003cbr\u003eNo — this catless downpipe is intended for off-road or competition use only. Removing the factory catalytic converters will likely trigger a Check Engine Light without a supporting ECU tune, and takes the vehicle out of compliance with street emissions laws in many states and countries. Check your local regulations before installing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a tune after installing this?\u003c\/strong\u003e\u003cbr\u003eYes — pair this downpipe with a supporting ECU tune to manage fueling and CEL codes once the factory catalytic converters are removed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's this downpipe made from?\u003c\/strong\u003e\u003cbr\u003e304L stainless steel (Vorsprung Spec 2.0mm wall thickness) with precision TIG-welded, back-purged construction, double-walled pipe ends, extra-thick 10mm stainless flanges, and included heat shielding — built to handle sustained heat and pressure without cracking or warping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long is the lead time?\u003c\/strong\u003e\u003cbr\u003eThese are made to order, with delivery times of approximately 30 days.\u003c\/p\u003e\n\u003chr\u003e\n\u003cdiv style=\"background-color: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin: 30px 0;\"\u003e\n\u003ch3 style=\"font-size: 1.25rem; font-weight: bold; margin-top: 0; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.5px; color: #0f172a;\"\u003eWhy Buy From Us?\u003c\/h3\u003e\n\u003cul style=\"list-style-type: none; padding: 0; margin: 0;\"\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eEnthusiast Designed \u0026amp; Tested:\u003c\/strong\u003e Developed by people who actually drive and modify these cars.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eTested on Our Own Cars:\u003c\/strong\u003e If we wouldn't run it ourselves, we don't sell it.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eContinuous R\u0026amp;D:\u003c\/strong\u003e We continually develop and improve our products instead of relying on generic catalog parts.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eSupporting Audi Platform Development:\u003c\/strong\u003e Your purchase helps fund continued development of new parts for these chassis.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eReal Enthusiast Support:\u003c\/strong\u003e Get help from people who understand the platform, not ticket bots.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 14px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003eSmall Team, Big Passion:\u003c\/strong\u003e Every order directly supports continued product development and innovation.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; font-size: 1.1rem; line-height: 1.2;\"\u003e✅\u003c\/span\u003e\n\u003cdiv style=\"color: #334155; font-size: 0.95rem; line-height: 1.4;\"\u003e\n\u003cstrong style=\"color: #0f172a;\"\u003ePerformance Without the Marketing Fluff:\u003c\/strong\u003e Purpose-built parts designed to perform.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center; font-weight: bold; margin-top: 30px;\"\u003eDrive the difference. Drive Vorsprung.\u003c\/p\u003e","brand":"Vorsprung Autowerk","offers":[{"title":"Standard \/ RS6\/RS7 D5 A8\/S8","offer_id":54246171312431,"sku":null,"price":899.99,"currency_code":"USD","in_stock":true},{"title":"Dual Layer Quartz Lined (Superior Heat Management and Exhaust Evacuation) \/ RS6\/RS7 D5 A8\/S8","offer_id":54246171377967,"sku":null,"price":1299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5821\/3935\/files\/vorsprung-autowerk-standard-sq7-sq8-rsq8-vorsprung-catless-downpipe-audi-ea825-4-0t-v8-46846981308719.jpg?v=1785216482"}],"url":"https:\/\/www.vorsprungautowerk.com\/collections\/audi-d5-a8-exhaust.oembed","provider":"Vorsprung Autowerk","version":"1.0","type":"link"}