{"product_id":"valved-catback-exhaust-for-audi-s4-b9-2018-2019","title":"Valved Catback Exhaust for Audi S4 (B9) (2018–2019)","description":"\u003ciframe width=\"100%\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/p02zdIt-OLk\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen\u003e\n\u003c\/iframe\u003e\n\n\n\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThis valved catback exhaust system allows you to switch anytime between quiet OEM-style comfort and a louder, more aggressive performance tone. Built from high-grade 304 stainless steel with precision TIG welding, it offers excellent durability, corrosion resistance, and a clean factory-like finish. The system is fully bolt-on — no cutting or welding required — making installation simple for most exhaust shops. Designed for the turbocharged 3.0T V6, it improves exhaust flow and gives the B9 S4 a deeper and sportier sound compared to the stock system, especially when the valve is open.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFitment: Compatible with Audi S4 (B9 Platform, 2018–2019), sedan and Avant. Fitment can be confirmed using a VIN or rear exhaust photo if needed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhat’s Included:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMid-pipe + rear valved catback system\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMounting hardware and clamps\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless valve controller or OEM-style valve integration (depending on setup)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSound Characteristics:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCold Start: deeper and more noticeable tone\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eValve Open: loud, sporty, and performance-focused sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eValve Closed: close to OEM comfort, ideal for daily and late-night driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eShipping: Ships directly from our partner factory. Estimated delivery: 2–5 weeks.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWarranty: If the product arrives damaged or defective, replacement parts will be provided.\u003c\/span\u003e\u003c\/p\u003e","brand":"NT Auto Performance","offers":[{"title":"Default Title","offer_id":45407195496621,"sku":null,"price":922.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/5156\/0365\/files\/99.jpg?v=1764897568","url":"https:\/\/ntauto.ca\/products\/valved-catback-exhaust-for-audi-s4-b9-2018-2019","provider":"NT Auto Performance","version":"1.0","type":"link"}