{"title":"AUDI","description":null,"products":[{"product_id":"audi-rsq8-sq8-sq7-400-cell-catted-downpipes","title":"Valvetronic Designs Audi RSQ8\/SQ8\/SQ7 400 Cell Catted Downpipes","description":"\u003cstrong\u003eAudi RSQ8 \/ SQ8 \/ SQ7 – EPA-Compliant 400 Cell Catted Downpipes\u003c\/strong\u003e\n\u003ch3\u003eUnlock the Full Potential of the 4.0T Twin-Turbo V8 • High-Flow • Compliant • \u003c\/h3\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eIntroducing Our NEW 400 Cell EPA-Compliant Downpipes for Audi 4.0T\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp style=\"margin:1em 0\"\u003eThe 4.0T twin-turbo V8 powering the Audi RSQ8, SQ8, and SQ7 delivers immense performance — but factory catalyst restrictions hold it back. Our \u003cstrong\u003eNEW EPA-compliant 400 cell high-flow catted downpipes\u003c\/strong\u003e are engineered to increase exhaust flow, enhance turbo efficiency, and dramatically sharpen the vehicle’s sound profile — all while maintaining emissions compliance standards.\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eThis is the foundation of true 4.0T performance.\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eEPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust velocity while maintaining compliance standards.\u003c\/li\u003e\n\u003cli\u003eFaster Turbo Spool: Reduced backpressure improves throttle response and mid-range torque delivery.\u003c\/li\u003e\n\u003cli\u003eSharper Exhaust Note: Enhanced turbo acoustics with deeper low-end presence and more aggressive top-end tone.\u003c\/li\u003e\n\u003cli\u003eOptimized Performance Balance: Noticeable gains without compromising daily drivability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eOptimized Flow Architecture: Designed to reduce restriction while preserving catalyst efficiency.\u003c\/li\u003e\n\u003cli\u003eMandrel-Bent Tubing: Smooth internal transitions for maximum airflow.\u003c\/li\u003e\n\u003cli\u003ePrecision TIG Welding: Built to withstand extreme exhaust temperatures and boost pressures.\u003c\/li\u003e\n\u003cli\u003eDirect OEM Bolt-On Design: Utilizes factory mounting locations for straightforward installation.\u003c\/li\u003e\n\u003cli\u003eEngineered to Pair Seamlessly with Valvetronic Titanium Exhaust Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eStock Exhaust + Downpipes: Noticeably louder with stronger turbo character and deeper exhaust tone.\u003c\/li\u003e\n\u003cli\u003eValvetronic Exhaust + Downpipes: Maximum transformation — sharper transitions, increased aggression, and a true RS-inspired exhaust signature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003ePremium high-grade stainless steel construction\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant 400 cell catalyst cores\u003c\/li\u003e\n\u003cli\u003eOEM-style sensor placement for proper operation\u003c\/li\u003e\n\u003cli\u003eEngineered for long-term reliability under high boost\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Valvetronic Designs","offers":[{"title":"Default Title","offer_id":59183997976716,"sku":"LAM.AUD.URUS.RSQ8.FF.400C.BR","price":3999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/DSC08120_ShopifyCustomSize.jpg?v=1789534191"},{"product_id":"audi-rs5-b9-valved-sport-exhaust-system","title":"Valvetronic Designs Audi RS5 B9 Valved Sport Exhaust System","description":"\u003cp style=\"margin:1em 0\"\u003eThe Audi B9 RS5’s 2.9L twin-turbo V6 is a powerhouse—but the factory exhaust hides much of its true character behind heavy, restrictive components. The \u003cstrong\u003eValvetronic Designs Full Valved Exhaust System\u003c\/strong\u003e unleashes the car’s full vocal potential, delivering an aggressive, motorsport-inspired tone when desired, and quiet refinement when needed.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eUnlike typical aftermarket setups requiring multiple parts from different vendors, our system is a \u003cstrong\u003ecomplete, single-package solution\u003c\/strong\u003e—from the OEM or aftermarket downpipes all the way to the exhaust tips. No more combining a cat-back from one brand with resonator sections from another—this is a true one-stop upgrade.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eWith the valves open, the RS5 gains a sharper tone, aggressive overrun crackles, and a commanding presence. Close the valves, and the car returns to near-stock quietness, making it ideal for both spirited driving and daily use.\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eValves Open: Bold, aggressive tone with pronounced overrun on deceleration.\u003c\/li\u003e\n\u003cli\u003eValves Closed: Quiet, comfortable OEM-like sound for everyday driving.\u003c\/li\u003e\n\u003cli\u003eValve Delete Recommended: OEM valves can activate unexpectedly; we recommend installing a valve delete module for optimal function.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eMaterial: T304 stainless steel for durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eWeight Savings: 16.3 lb lighter than OEM.\u003c\/li\u003e\n\u003cli\u003eCraftsmanship: Precision TIG welds and fully mandrel-bent tubing for strength and maximum flow.\u003c\/li\u003e\n\u003cli\u003eTips: Includes premium exhaust tips for a refined performance finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eFull-System Design: Replaces the need for mixing exhaust components from different brands.\u003c\/li\u003e\n\u003cli\u003eElectronic Valve Control: Instantly switch between aggressive and refined exhaust modes.\u003c\/li\u003e\n\u003cli\u003eOptimized Flow: Mandrel-bent construction improves performance across the rev range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e2018–2024 Audi RS5 Coupe (B9)\u003c\/li\u003e\n\u003cli\u003e2018–2024 Audi RS5 Sportback (B9)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eDirect replacement for the OEM exhaust.\u003c\/li\u003e\n\u003cli\u003e100% reversible—return to stock at any time.\u003c\/li\u003e\n\u003cli\u003eECU tune recommended for maximum performance gains and improved drivability due to reduced back pressure.\u003c\/li\u003e\n\u003cli\u003ePurchaser\/installer must verify compliance with local emissions laws before purchase and installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eFull T304 stainless steel valved exhaust system\u003c\/li\u003e\n\u003cli\u003eElectronic exhaust valves (OEM delete module recommended)\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware and clamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/pgkzYZZZ4BA\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/KIn2G_0PI40\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Valvetronic Designs","offers":[{"title":"Default Title","offer_id":59183998238860,"sku":"AUD.B9.RS5.VSES.BR","price":2999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/A7405533.jpg?v=1789534195"},{"product_id":"audi-b9-s4-s5-valved-sport-exhaust-system","title":"Valvetronic Designs Audi B9 S4 \/ S5 Valved Sport Exhaust System","description":"\u003cp style=\"margin:1em 0\"\u003eThe Audi B9 S4 and S5, powered by the EA839 3.0L V6, have impressive performance potential—but the stock exhaust hides much of this engine’s true character. The Valvetronic Designs Full Valved Exhaust System unleashes its voice, delivering an aggressive, motorsport-inspired tone when desired, and stock-like refinement when needed.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eUnlike typical setups requiring multiple components from different vendors, our system is engineered as a \u003cstrong\u003ecomplete solution\u003c\/strong\u003e—from the OEM or aftermarket downpipe all the way to the exhaust tips. This single-package design eliminates the need for mixing and matching resonator sections or axle-backs from other brands, ensuring perfect fitment, seamless performance, and consistent sound quality.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eWith valves open, expect a bold exhaust note, pronounced overrun crackles, and a commanding presence. With valves closed, the car returns to quiet factory manners, with zero drone when paired with the OEM downpipe.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eFor those upgrading from the V8-powered B6 or B7 S4, our system delivers the level of engagement and emotional sound you’ve been missing—ensuring your B9 ownership experience is just as exciting.\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eValves Open: Aggressive tone with rich midrange and sharp overrun crackles on deceleration.\u003c\/li\u003e\n\u003cli\u003eValves Closed: Quiet, refined, and OEM-like for comfortable daily driving.\u003c\/li\u003e\n\u003cli\u003eNo Drone: When paired with the OEM downpipe, cabin comfort is unaffected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eMaterial: T304 stainless steel for long-term durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eWeight Savings: 16.4 lb lighter than the OEM exhaust system.\u003c\/li\u003e\n\u003cli\u003eCraftsmanship: Precision TIG welds and mandrel bends for optimal flow and strength.\u003c\/li\u003e\n\u003cli\u003eTips: Includes premium exhaust tips for a finished, performance-oriented look.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eOne-Piece System Design: Eliminates the need for mixing components from multiple vendors.\u003c\/li\u003e\n\u003cli\u003eElectronic Valve Control: Switch between aggressive and refined sound instantly.\u003c\/li\u003e\n\u003cli\u003eMandrel-Bent Construction: Maximizes flow for improved throttle response and power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e2017–2024 Audi S4 (B9)\u003c\/li\u003e\n\u003cli\u003e2017–2024 Audi S5 (B9)\u003c\/li\u003e\n\u003cli\u003e(Doesn't fit Sportback models)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eFull T304 stainless steel valved exhaust system\u003c\/li\u003e\n\u003cli\u003eElectronic exhaust valves with key fob remote system\u003c\/li\u003e\n\u003cli\u003eAll necessary clamps and hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eTubing: Full mandrel-bent T304 stainless steel\u003c\/li\u003e\n\u003cli\u003eValves: Electronic, remote-controlled\u003c\/li\u003e\n\u003cli\u003eWeight Savings: 16.4 lb lighter than OEM\u003c\/li\u003e\n\u003cli\u003eFinish: Brushed stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003cvideo controls preload=\"metadata\" style=\"display:block;width:100%;max-width:560px;aspect-ratio:auto 16\/9;border-radius:8px;background:#000\"\u003e\u003csource src=\"https:\/\/cdn.shopify.com\/videos\/c\/vp\/b0f1c939675f4c47a2d4a672a2e82396\/b0f1c939675f4c47a2d4a672a2e82396.HD-1080p-7.2Mbps-54353337.mp4#t=0.1\"\u003e\u003c\/video\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eCONFIGURATION:\u003c\/strong\u003e Valved Sport Exhaust System\u003c\/p\u003e","brand":"Valvetronic Designs","offers":[{"title":"(4) Brushed Steel (3.5 Outlet)","offer_id":59183998304396,"sku":"AUD.B9.S4.VSES.BR.BRSH","price":2499.99,"currency_code":"USD","in_stock":true},{"title":"(4) Burnt (3.5 Outlet)","offer_id":59183998337164,"sku":"AUD.B9.S4.VSES.BR.BRT","price":2499.99,"currency_code":"USD","in_stock":true},{"title":"(4) Black (3.5 Outlet)","offer_id":59183998369932,"sku":"AUD.B9.S4.VSES.BR.BLK","price":2499.99,"currency_code":"USD","in_stock":true},{"title":"(4) Carbon Fiber 1x1 (3.5 Outlet)","offer_id":59183998402700,"sku":"AUD.B9.S4.VSES.BR.RC","price":2499.99,"currency_code":"USD","in_stock":true},{"title":"(4) Forged Carbon Fiber (3.5 Outlet)","offer_id":59183998435468,"sku":"AUD.B9.S4.VSES.BR.FC","price":2499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/A7405504.jpg?v=1789534197"},{"product_id":"audi-ttrs-mk3-valved-sport-exhaust-system","title":"Valvetronic Designs Audi TTRS MK3 Valved Sport Exhaust System","description":"\u003cp style=\"margin:1em 0\"\u003eThe five-cylinder soundtrack is iconic—the factory cat-back just keeps it on too short a leash. The \u003cstrong\u003eValvetronic Designs Valved Cat-Back\u003c\/strong\u003e for the Mk3 TTRS increases system diameter to \u003cstrong\u003e3 inches\u003c\/strong\u003e for significantly improved flow and a sharper, more characterful note without sacrificing daily comfort.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eAt the heart of the design is our rear \u003cstrong\u003eY-section\u003c\/strong\u003e: straight-through when valves are open for maximum presence, and routed through a \u003cstrong\u003equad-chamber center muffler\u003c\/strong\u003e when closed for quiet, refined cruising. The dream exhaust for Audi’s modern 5-cylinder is here.\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eValves Open: Uninterrupted flow to the tips—crisp, aggressive 5-cylinder character.\u003c\/li\u003e\n\u003cli\u003eValves Closed: Gas passes through the quad-chamber center muffler—significantly reduced volume, highway-friendly.\u003c\/li\u003e\n\u003cli\u003eOEM Integration: Uses OEM-style electronically actuated valves; compatible with OEM Audi valve control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eMaterial: T304 stainless steel throughout.\u003c\/li\u003e\n\u003cli\u003eCraftsmanship: Precision TIG welds and fully mandrel-bent tubing.\u003c\/li\u003e\n\u003cli\u003eWeight Savings: 14.8 lb lighter than the factory exhaust.\u003c\/li\u003e\n\u003cli\u003eFinish \u0026amp; Tips: Premium tips engineered to complement the TTRS rear bumper.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e3\" Free-Flow Architecture: Reduces back pressure and unlocks response through the rev range.\u003c\/li\u003e\n\u003cli\u003eDual-Path Rear Y-Section: Straight-through (open) or muffled (closed) for two distinct personalities.\u003c\/li\u003e\n\u003cli\u003eSystem Tuning as a Whole: Designed as a cohesive cat-back for consistent tone and perfect fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\u003cli\u003e2017–2020 Audi TTRS (Mk3 \/ 8S)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eDirect bolt-on cat-back; no permanent modifications required.\u003c\/li\u003e\n\u003cli\u003e100% reversible—return to stock at any time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e3\" T304 stainless steel valved cat-back system\u003c\/li\u003e\n\u003cli\u003eQuad-chamber center muffler\u003c\/li\u003e\n\u003cli\u003eOEM-style electronic valves\u003c\/li\u003e\n\u003cli\u003eAll required clamps and hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/B5AddZHfQKg\" title=\"Product video\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eTIPS:\u003c\/strong\u003e (2) Black (OEM STYLE)\u003c\/p\u003e","brand":"Valvetronic Designs","offers":[{"title":"Brushed Finish","offer_id":59184000073868,"sku":"AUD.MK3.VSES.BR","price":2499.99,"currency_code":"USD","in_stock":true},{"title":"Grade 5 Titanium","offer_id":59184000106636,"sku":"AUD.MK3.VSES.TI","price":3999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/image_560736fc-6337-443b-8f57-333441fb83c3.jpg?v=1789534230"},{"product_id":"audi-rsq8-valved-sport-exhaust-system","title":"Valvetronic Designs AUDI RSQ8 Valved Sport Exhaust system","description":"\u003cp style=\"margin:1em 0\"\u003eThe Audi RSQ8 blends supercar performance with SUV practicality—but like many modern performance vehicles, its factory exhaust keeps things a little too restrained. The \u003cstrong\u003eValvetronic Designs Valved Cat-Back Exhaust System\u003c\/strong\u003e unleashes the full potential of the 4.0L twin-turbo V8, giving it the voice it deserves.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eThis 3-inch system runs from the downpipes to the OEM exhaust tips, offering two distinct personalities: valves closed for refined, factory-like cruising, or valves open for an unfiltered, aggressive soundtrack. For those who want even more performance and volume, our \u003cstrong\u003eoptional free-flow downpipes\u003c\/strong\u003e take things to the next level.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eControlled via electronic standalone valves, the system offers long-term reliability, seamless integration, and unmatched flexibility.\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eValves Closed: Stock-like sound levels for comfortable daily driving and highway cruising.\u003c\/li\u003e\n\u003cli\u003eValves Open: Silencer fully bypassed for maximum volume and character.\u003c\/li\u003e\n\u003cli\u003eOptional Free-Flow Downpipes: Unlock even more performance and an enhanced exhaust tone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eMaterial: Signature T304 stainless steel for strength and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eWeight Savings: 11.5 lb lighter than the factory exhaust.\u003c\/li\u003e\n\u003cli\u003eCraftsmanship: Precision TIG welds for durability and premium finish.\u003c\/li\u003e\n\u003cli\u003eTips: Designed to retain OEM exhaust tips for a factory-fit appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e3-Inch Diameter Tubing: Maximizes flow for improved throttle response and power.\u003c\/li\u003e\n\u003cli\u003eDual Sound Modes: Quiet refinement with valves closed, motorsport aggression with valves open.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\u003cli\u003e2019–2025 Audi RSQ8\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\u003cli\u003eDirect bolt-on fit to OEM mounting points.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eT304 stainless steel valved cat-back exhaust system\u003c\/li\u003e\n\u003cli\u003eStandalone electronic valve controller\u003c\/li\u003e\n\u003cli\u003eAll necessary clamps and hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eMaterial: T304 stainless steel\u003c\/li\u003e\n\u003cli\u003eWeight Savings: 11.5 lb vs. OEM\u003c\/li\u003e\n\u003cli\u003eTubing Diameter: 3 inches from front to rear\u003c\/li\u003e\n\u003cli\u003eFinish: Brushed stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9jVzqCUQ31s\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/IKme-3H7IU8\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/TLDnYtLMo3s\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Valvetronic Designs","offers":[{"title":"Sport Catback system only","offer_id":59184000434316,"sku":"AUD.RSQ8.VSES.AG","price":3999.99,"currency_code":"USD","in_stock":true},{"title":"'+ Free Flow Front Pipes","offer_id":59184000467084,"sku":"AUD.RSQ8.VSES.FF.AG","price":4999.99,"currency_code":"USD","in_stock":true},{"title":"+ 400 Cell Catted Downpipes","offer_id":59184000499852,"sku":"AUD.RSQ8.VSES.FF.400C.AG","price":7499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/A7409964_4180a939-ec0c-454d-a300-0cfc0fef59cf.jpg?v=1789534232"},{"product_id":"audi-c8-rs6-rs7-400-cell-catted-downpipes","title":"Valvetronic Designs Audi C8 RS6 \/ RS7 400 Cell Catted Downpipes","description":"\u003cstrong\u003eAudi C8 RS6 \/ RS7 – EPA-Compliant 400 Cell Catted Downpipes\u003c\/strong\u003e\n\u003ch3\u003eEngineered for the 4.0T Twin-Turbo V8 • High-Flow • Compliant •\u003c\/h3\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eIntroducing Our NEW 400 Cell EPA-Compliant Downpipes for C8 RS6 \/ RS7\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp style=\"margin:1em 0\"\u003eThe Audi C8 RS6 and RS7 combine executive refinement with supercar-level performance, powered by the formidable 4.0T twin-turbo V8. While factory catalysts restrict exhaust flow and mute the engine’s full character, our \u003cstrong\u003eNEW EPA-compliant 400 cell high-flow catted downpipes\u003c\/strong\u003e are engineered to reduce backpressure, enhance turbo efficiency, and unlock a deeper, more commanding exhaust tone — all while maintaining emissions compliance standards.\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eThis upgrade forms the foundation of serious 4.0T performance.\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eStock Exhaust + Downpipes: Noticeable increase in depth and turbo presence with enhanced exhaust clarity.\u003c\/li\u003e\n\u003cli\u003eValvetronic Exhaust + Downpipes: Maximum transformation — stronger presence, sharper transitions, and a true Audi Sport-inspired signature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eEPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards.\u003c\/li\u003e\n\u003cli\u003eImproved Turbo Spool \u0026amp; Mid-Range Response: Reduced restriction sharpens throttle input and power delivery.\u003c\/li\u003e\n\u003cli\u003eEnhanced Exhaust Character: Deeper tone with stronger turbo acoustics and more pronounced high-RPM presence.\u003c\/li\u003e\n\u003cli\u003eStreet \u0026amp; Performance Balanced: Noticeable gains without compromising daily refinement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eOptimized Flow Architecture: Minimizes backpressure while preserving catalyst efficiency.\u003c\/li\u003e\n\u003cli\u003eMandrel-Bent Tubing: Smooth internal transitions for maximum exhaust velocity.\u003c\/li\u003e\n\u003cli\u003ePrecision TIG Welding: Built to endure sustained high exhaust temperatures and boost levels.\u003c\/li\u003e\n\u003cli\u003eDirect OEM Bolt-On Installation: Utilizes factory mounting locations for straightforward installation.\u003c\/li\u003e\n\u003cli\u003eEngineered to Pair Seamlessly with Valvetronic Exhaust Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003ePremium high-grade stainless steel construction\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant 400 cell catalyst cores\u003c\/li\u003e\n\u003cli\u003eOEM-style sensor placement for proper operation\u003c\/li\u003e\n\u003cli\u003eEngineered for long-term reliability under high-performance conditions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Valvetronic Designs","offers":[{"title":"Default Title","offer_id":59184000696460,"sku":"AUD.C8.RS6.FF.400C.BR","price":2999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/DSC07927_Shopify_Custom_Size.jpg?v=1789534232"},{"product_id":"audi-rs6-rs7-c7-valved-sport-exhaust-sytem","title":"Valvetronic Designs Audi RS6 \/ RS7 C7 Valved Sport Exhaust Sytem","description":"\u003cp style=\"margin:1em 0\"\u003eThe Audi RS6 and RS7 C7 platform strikes a rare balance between comfort and blistering performance—making it one of the most capable grand tourers on the road. But while the 4.0L twin-turbo V8 delivers incredible power, its factory exhaust leaves much to be desired.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eThe \u003cstrong\u003eValvetronic Designs Valved Cat-Back Exhaust System\u003c\/strong\u003e transforms the RS6\/RS7 into a true auditory experience. Constructed from the highest-quality Grade 5 Titanium, this system delivers an aggressive, motorsport-inspired tone with the valves open, and a refined, drone-free soundtrack with the valves closed.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eFor those seeking the ultimate sound, pairing the system with our \u003cstrong\u003efree-flow front bypass pipes\u003c\/strong\u003e unlocks maximum volume and performance—while the large cross-section H-pipe improves exhaust scavenging for unmatched tone and response.\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eValves Open: Full-bodied V8 aggression with enhanced midrange punch and sharper top-end note.\u003c\/li\u003e\n\u003cli\u003eValves Closed: Quiet and refined for comfortable long-distance cruising.\u003c\/li\u003e\n\u003cli\u003ePair with Free-Flow Front Bypass Pipes: For maximum volume, performance gains, and an even more pronounced exhaust note.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eMaterial: Grade 5 Titanium for strength and exotic sound.\u003c\/li\u003e\n\u003cli\u003eCraftsmanship: Precision TIG welds and mandrel-bent tubing for maximum flow.\u003c\/li\u003e\n\u003cli\u003eDesign: Fully engineered in-house for fitment long-term durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eIntegrated Large-Diameter H-Pipe: Enhances exhaust scavenging for improved performance and a unique, exotic tone.\u003c\/li\u003e\n\u003cli\u003eDual Sound Character: Aggressive and raw with valves open, refined and composed with valves closed.\u003c\/li\u003e\n\u003cli\u003eOptimized for Comfort: Engineered for a drone-free experience in all modes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e2014–2018 Audi RS6 (C7)\u003c\/li\u003e\n\u003cli\u003e2014–2018 Audi RS7 (C7)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\u003cli\u003eDirect bolt-on fitment to OEM exhaust mounting points.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eTitanium valved cat-back exhaust system\u003c\/li\u003e\n\u003cli\u003eIntegrated large-diameter H-pipe\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware and clamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/33t_Ja0i08U\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Titanium\u003c\/p\u003e","brand":"Valvetronic Designs","offers":[{"title":"Sport Catback","offer_id":59184093921420,"sku":"AUD.C7.VSES.TI","price":4999.99,"currency_code":"USD","in_stock":true},{"title":"'+ Free Flow Race Front Pipes","offer_id":59184093954188,"sku":"AUD.C7.VSES.FF.TI","price":6999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/A7406963.jpg?v=1789534258"},{"product_id":"audi-rs6-rs7-c8-valved-sport-exhaust-system","title":"Valvetronic Designs Audi RS6 \/ RS7 C8 Valved Sport Exhaust System","description":"\u003cp style=\"margin:1em 0\"\u003eThe C8 RS6\/RS7 pairs long-distance comfort with serious pace—but the factory exhaust keeps the 4.0L twin-turbo V8 far too quiet. The \u003cstrong\u003eValvetronic Designs Titanium Valved Cat-Back\u003c\/strong\u003e transforms the experience, delivering a raw, motorsport-inspired soundtrack with the valves open, and a refined, grand-touring tone with the valves closed.\u003c\/p\u003e\u003cp style=\"margin:1em 0\"\u003eCrafted entirely from titanium and engineered around a large cross-section H-pipe, this system improves exhaust scavenging and throttle response while staying \u003cstrong\u003edrone-free\u003c\/strong\u003e in either mode. For maximum presence and performance, pair it with our \u003cstrong\u003efree-flow front bypass pipes\u003c\/strong\u003e.\u003c\/p\u003e\u003cblockquote\u003e\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e \u003cstrong\u003eValve simulators are recommended\u003c\/strong\u003e on this platform to prevent CELs related to factory valve monitoring. Contact our support team for guidance.\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eValves Open: Full-bodied V8 aggression, pronounced midrange, and a sharper top-end note.\u003c\/li\u003e\n\u003cli\u003eValves Closed: Subtle, composed tone ideal for daily use and highway cruising.\u003c\/li\u003e\n\u003cli\u003eBypass Pipes (Optional): Unlock maximum volume and presence when combined with the cat-back.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eMaterial: Lightweight titanium throughout.\u003c\/li\u003e\n\u003cli\u003eWeight Savings: 61.5 lb lighter than the factory exhaust.\u003c\/li\u003e\n\u003cli\u003eCraftsmanship: Precision TIG welds and smooth, high-flow routing for durability and performance.\u003c\/li\u003e\n\u003cli\u003eTips: Premium tips designed to complement the RS6\/RS7 rear aesthetics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eTitanium Construction: Significant weight reduction and rapid heat dissipation for sharper response.\u003c\/li\u003e\n\u003cli\u003eLarge Cross-Section X-Pipe: Enhances scavenging for a cleaner, more exotic tone.\u003c\/li\u003e\n\u003cli\u003eFull-System Tuning: Designed as a cohesive cat-back for consistent sound quality and fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e2019–2026 Audi RS6 Avant (C8)\u003c\/li\u003e\n\u003cli\u003e2019–2026 Audi RS7 Sportback (C8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003eFull titanium valved cat-back exhaust system\u003c\/li\u003e\n\u003cli\u003eIntegrated H-pipe\u003c\/li\u003e\n\u003cli\u003eRapid-actuating electronic valves\u003c\/li\u003e\n\u003cli\u003eAll required clamps and hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/gnwk3Df8xMA\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/LrHCggJrIxM\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/MNfiw57liYw\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0 0 0.75em\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/k2rwIUTnWgY\" title=\"YouTube video player\" loading=\"lazy\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen style=\"display:block;width:100%;max-width:560px;aspect-ratio:16\/9;border:0;border-radius:8px\"\u003e\u003c\/iframe\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Valvetronic Designs","offers":[{"title":"SPORT CATBACK SYSTEM WITH BLACK OEM STYLE TIPS","offer_id":59184094249100,"sku":"AUD.C8.RS6.VSES.TI","price":4999.99,"currency_code":"USD","in_stock":true},{"title":"'+ FREE FLOW RACE FRONT PIPES","offer_id":59184094281868,"sku":"AUD.C8.RS6.VSES.FF.TI","price":5999.99,"currency_code":"USD","in_stock":true},{"title":"+ 400 Cell Catalytic Converters","offer_id":59184094314636,"sku":"AUD.C8.RS6.VSES.FF.400C.TI","price":7499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/A7403029-2.jpg?v=1789534261"}],"url":"https:\/\/vpmotorworks.com\/collections\/audi.oembed","provider":"VP Motorworks","version":"1.0","type":"link"}