{"product_id":"valvetronic-designs-audi-b9-s4-s5-race-valved-exhaust","title":"Valvetronic Designs Audi B9 S4 \/ S5 Valved Sport Exhaust System","description":"\u003cp\u003eAudi B9 S4 \u0026amp; S5 Valved Exhaust System\u003c\/p\u003e\u003cp\u003eFull T304 Stainless Steel System with Electronic Valve Control\u003c\/p\u003e\u003cp\u003eOverview\u003c\/p\u003e\u003cp\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\u003eUnlike typical setups requiring multiple components from different vendors, our system is engineered as a complete solution—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\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\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\u003cp\u003eWhy It Works\u003c\/p\u003e\u003cp\u003eOne-Piece System Design: Eliminates the need for mixing components from multiple vendors.\u003c\/p\u003e\u003cp\u003eElectronic Valve Control: Switch between aggressive and refined sound instantly.\u003c\/p\u003e\u003cp\u003eMandrel-Bent Construction: Maximizes flow for improved throttle response and power.\u003c\/p\u003e\u003cp\u003eSound \u0026amp; Control\u003c\/p\u003e\u003cp\u003eValves Open: Aggressive tone with rich midrange and sharp overrun crackles on deceleration.\u003c\/p\u003e\u003cp\u003eValves Closed: Quiet, refined, and OEM-like for comfortable daily driving.\u003c\/p\u003e\u003cp\u003eNo Drone: When paired with the OEM downpipe, cabin comfort is unaffected.\u003c\/p\u003e\u003cp\u003eConstruction \u0026amp; Options\u003c\/p\u003e\u003cp\u003eMaterial: T304 stainless steel for long-term durability and corrosion resistance.\u003c\/p\u003e\u003cp\u003eWeight Savings: 16.4 lb lighter than the OEM exhaust system.\u003c\/p\u003e\u003cp\u003eCraftsmanship: Precision TIG welds and mandrel bends for optimal flow and strength.\u003c\/p\u003e\u003cp\u003eTips: Includes premium exhaust tips for a finished, performance-oriented look.\u003c\/p\u003e\u003cp\u003eFitment\u003c\/p\u003e\u003cp\u003e2017–2024 Audi S4 (B9)\u003c\/p\u003e\u003cp\u003e2017–2024 Audi S5 (B9)\u003c\/p\u003e\u003cp\u003e(Doesn't fit Sportback models)\u003c\/p\u003e\u003cp\u003eInstallation Notes\u003c\/p\u003e\u003cp\u003eDirect-fit for sedan models.\u003c\/p\u003e\u003cp\u003eCoupe models require modification to shorten the mid-section for proper fitment. Contact info@valvetronic.com for guidance.\u003c\/p\u003e\u003cp\u003eWhat’s Included\u003c\/p\u003e\u003cp\u003eFull T304 stainless steel valved exhaust system\u003c\/p\u003e\u003cp\u003eElectronic exhaust valves with key fob remote system\u003c\/p\u003e\u003cp\u003eAll necessary clamps and hardware\u003c\/p\u003e\u003cp\u003eSpecifications\u003c\/p\u003e\u003cp\u003eTubing: Full mandrel-bent T304 stainless steel\u003c\/p\u003e\u003cp\u003eValves: Electronic, remote-controlled\u003c\/p\u003e\u003cp\u003eWeight Savings: 16.4 lb lighter than OEM\u003c\/p\u003e\u003cp\u003eFinish: Brushed stainless steel\u003c\/p\u003e","brand":"Valvetronic Designs","offers":[{"title":"Valved Sport Exhaust System \/ (4) Brushed Steel (3.5 Outlet)","offer_id":55671444373823,"sku":"AUD.B9.S4.VSES.BR.BRSH","price":3500.49,"currency_code":"CAD","in_stock":false},{"title":"Valved Sport Exhaust System \/ (4) Burnt (3.5 Outlet)","offer_id":55671444406591,"sku":"AUD.B9.S4.VSES.BR.BRT","price":3500.49,"currency_code":"CAD","in_stock":false},{"title":"Valved Sport Exhaust System \/ (4) Black (3.5 Outlet)","offer_id":55671444439359,"sku":"AUD.B9.S4.VSES.BR.BLK","price":3500.49,"currency_code":"CAD","in_stock":false},{"title":"Valved Sport Exhaust System \/ (4) Carbon Fiber 1x1 (3.5 Outlet)","offer_id":55671444472127,"sku":"AUD.B9.S4.VSES.BR.RC","price":3500.49,"currency_code":"CAD","in_stock":false},{"title":"Valved Sport Exhaust System \/ (4) Forged Carbon Fiber (3.5 Outlet)","offer_id":55671444504895,"sku":"AUD.B9.S4.VSES.BR.FC","price":3500.49,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/1348\/3839\/files\/valvetronic-6888558886948-1.jpg?v=1789847455","url":"https:\/\/foreignautomotive.ca\/products\/valvetronic-designs-audi-b9-s4-s5-race-valved-exhaust","provider":"Foreign Automotive","version":"1.0","type":"link"}