{"product_id":"stone-exhaust-porsche-e3-cayenne-s-2-9t-cat-back-valvetronic-exhaust-system","title":"Stone Exhaust Porsche Cayenne S E3 2.9T V6 (2019+) Valvetronic Valved Sports Exhaust Kit – Cat-Back \/ Axle-Back Rear Silencer Back Box – Remote Valve Control \u0026 OBD Plug-and-Play – OPF\/GPF Solution – Active Performance Exhaust – QP509BSQ","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003ePorsche Cayenne S E3 2.9 twin turbo switchable valve rear system with remote control\u003c\/h2\u003e\n  \u003cp\u003eBring your E3-chassis Cayenne S to life with this premium switchable valve rear section from Stone Exhaust. Engineered for the 2019 onwards 2.9 twin turbo V6, it delivers a deeper, more purposeful soundtrack when you want it, and a calm, refined cruise when you do not. Built for precise fit and effortless installation, this is a bolt-on upgrade that transforms character, response and enjoyment every time you drive.\u003c\/p\u003e\n  \u003cp\u003ePart number: \u003cstrong\u003eQP509BSQ\u003c\/strong\u003e\u003c\/p\u003e\n\n  \u003ch3\u003eWhy enthusiasts choose this upgrade\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDirect replacement for the factory rear system on Porsche Cayenne S E3 2.9T (2019+)\u003c\/li\u003e\n    \u003cli\u003eSwitchable valves with handheld remote for open, closed or automatic RPM-based operation\u003c\/li\u003e\n    \u003cli\u003ePlug-in controller via the OBD port for clean, reversible installation\u003c\/li\u003e\n    \u003cli\u003eLaser-scanned and CAD-developed for factory-like alignment and clearances\u003c\/li\u003e\n    \u003cli\u003eMulti-axis CNC formed tubing for smooth gas flow and crisp throttle feel\u003c\/li\u003e\n    \u003cli\u003eRefined cabin manners with minimal drone when valves are closed\u003c\/li\u003e\n    \u003cli\u003eOPF\/GPF solution included to prevent warning lights on particulate filter cars\u003c\/li\u003e\n    \u003cli\u003ePrecision welds and robust construction for long-term reliability\u003c\/li\u003e\n    \u003cli\u003eDeveloped and validated on the dyno for consistent performance\u003c\/li\u003e\n    \u003cli\u003eBacked by a 2 year manufacturer warranty\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eValve control at your fingertips\u003c\/h3\u003e\n  \u003cp\u003eGo from subtle to sport with the supplied remote. Choose open valves for maximum sound and flow, closed valves for a discreet drive, or set automatic mode to let the system open at a user-defined engine speed. The control module connects through the vehicle’s OBD port for a neat, plug-and-play set-up.\u003c\/p\u003e\n\n  \u003ch3\u003eDesigned to fit. Tuned to thrill.\u003c\/h3\u003e\n  \u003cp\u003eThis performance rear section is created using detailed scans of the original equipment system to ensure perfect routing and hanger alignment. The result is a high-quality, bolt-on solution that sits correctly, clears heat shields and undertrays, and delivers the tone you expect from a premium Porsche SUV upgrade.\u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePorsche Cayenne S E3 2.9T V6 twin turbo, 2019 onwards\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat owners say\u003c\/h3\u003e\n  \u003cp\u003eWe have supplied and installed this Stone valve-controlled rear section for many Cayenne S customers and feedback has been excellent. Standout comments include the quality of the build, the seamless fit and the ability to switch from quiet to aggressive at the touch of a button. It is a genuine daily-driver friendly sound upgrade with the punch you want on spirited drives.\u003c\/p\u003e\n\n  \u003ch3\u003eInstallation\u003c\/h3\u003e\n  \u003cp\u003eProfessional fitting recommended. MJ Modifications offers in-house installation in Warwickshire with technicians experienced in Porsche E3 platforms and Stone valve control set-ups. Request a fitting quote: \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eOPF\/GPF information\u003c\/h3\u003e\n  \u003cp\u003eIncludes an OPF\/GPF solution at no extra cost to prevent particulate filter related error codes. No coding required with this system when installed as directed.\u003c\/p\u003e\n\n  \u003ch3\u003eManufacturer and warranty\u003c\/h3\u003e\n  \u003cp\u003eManufacturer: Stone Exhaust\u003c\/p\u003e\n  \u003cp\u003eWarranty: 2 years\u003c\/p\u003e\n\n  \u003ch3\u003eWatch how the valve control works\u003c\/h3\u003e\n  \u003cdiv style=\"margin: 12px 0;\"\u003e\n    \u003ciframe width=\"100%\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" title=\"Stone Valvetronic Installation\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eSound check\u003c\/h3\u003e\n  \u003cdiv style=\"margin: 12px 0;\"\u003e\n    \u003ciframe width=\"100%\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/BxZiXkZgO1U\" title=\"Porsche Cayenne S 2.9T Stone Exhaust cat-back sound\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eGallery\u003c\/h3\u003e\n  \u003cp\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_E3_Cayenne_S_2.9T_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA_-1_600x600.png?v=1595318736\" alt=\"Porsche Cayenne S E3 2.9T switchable valve rear exhaust system by Stone\"\u003e\n  \u003c\/p\u003e\n  \u003cp\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_E3_Cayenne_S_2.9T_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA_-2_600x600.png?v=1595318747\" alt=\"Cayenne S E3 2.9T upgrade rear section with valve control\"\u003e\n  \u003c\/p\u003e\n  \u003cp\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_E3_Cayenne_S_2.9T_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA_-3_600x600.png?v=1595318756\" alt=\"Valve-controlled performance exhaust for Porsche Cayenne S 2.9T\"\u003e\n  \u003c\/p\u003e\n  \u003cp\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_E3_Cayenne_S_2.9T_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA_-4_600x600.png?v=1595318765\" alt=\"Stone Exhaust rear system fitment on E3 Cayenne S\"\u003e\n  \u003c\/p\u003e\n  \u003cp\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_E3_Cayenne_S_2.9T_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA_-5_600x600.png?v=1595318774\" alt=\"Porsche Cayenne S 2.9T performance exhaust upgrade UK\"\u003e\n  \u003c\/p\u003e\n\n  \u003ch3\u003eSEO-friendly search terms\u003c\/h3\u003e\n  \u003cp\u003eCayenne S 2.9T exhaust upgrade, Porsche Cayenne S E3 sports system, Porsche SUV valve exhaust, switchable valve back box Cayenne, remote controlled exhaust valves Porsche, active exhaust Cayenne S UK, performance rear silencer Porsche E3, Cayenne S sound upgrade UK, Porsche Cayenne 2.9 twin turbo exhaust kit, E3 Cayenne V6 exhaust with valves, OPF GPF solution Cayenne S, Porsche Cayenne S aftermarket exhaust UK, Stone Exhaust Porsche valve system, Cayenne S 2019 performance exhaust, Porsche Cayenne S tuning parts UK, direct fit exhaust Porsche E3, drone free Porsche exhaust, OBD plug and play exhaust controller Porsche, Porsche Cayenne valve controlled exhaust, premium exhaust for Cayenne S.\u003c\/p\u003e\n\n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eQP509BSQ\u003c\/strong\u003e\u003c\/p\u003e\n\n  \u003cp\u003eQuestions or want us to supply and install in Warwickshire? Email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e and the MJ Modifications team will be happy to help.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Stone Exhaust","offers":[{"title":"Flat Cut Gloss Carbon Fibre (102mm)","offer_id":56006644236674,"sku":null,"price":4156.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/1020CG_FlatCutGlossCarbonFibre_102mm_1024x1024_2x_ac22b1d5-a7f0-4157-83be-fbd99e1fb3cd.webp?v=1764059605","url":"https:\/\/mjmodifications.co.uk\/products\/stone-exhaust-porsche-e3-cayenne-s-2-9t-cat-back-valvetronic-exhaust-system","provider":"MJ Modifications","version":"1.0","type":"link"}