{"product_id":"valvetronic-designs-porsche-781-gt4-boxter-spyder-valved-sport-exhaust-system","title":"Valvetronic Designs Valved Sport Exhaust System for Porsche 718 GT4 \/ GTS\/ Boxster Spyder","description":"\u003cp\u003ePorsche 718 GT4 \/ GTS\/ Boxster Spyder – Valved Exhaust System\u003c\/p\u003e\u003cp\u003eTitanium Rear Section • F1 Race Headers • OEM Valve Integration\u003c\/p\u003e\u003cp\u003eOverview\u003c\/p\u003e\u003cp\u003eThe Porsche 718 GT4 and Boxster Spyder are outstanding driver’s cars, but their factory exhaust note lacks the character and intensity enthusiasts expect. Valvetronic Designs changes that. Drawing from our development of the 992 GT3 RS and GT4 RS platforms, this valved exhaust system injects the high-pitch exotic tone Porsche purists crave—transforming the flat stock sound into something truly spine-tingling.\u003c\/p\u003e\u003cp\u003eThis system blends lightweight titanium craftsmanship, race-inspired headers, and OEM-level integration to deliver a raw, emotional sound without compromising drivability.\u003c\/p\u003e\u003cp\u003eKey Components\u003c\/p\u003e\u003cp\u003eSignature Titanium Rear Section\u003c\/p\u003e\u003cp\u003eCrafted from premium Grade 5 titanium for extreme weight savings and durability.\u003c\/p\u003e\u003cp\u003eFeatures a center X-pipe to balance pulses and create a smoother, sharper high-pitched tone.\u003c\/p\u003e\u003cp\u003eDelivers the exotic character reminiscent of Porsche’s naturally aspirated GT engines.\u003c\/p\u003e\u003cp\u003eT304 Stainless Steel Over-Axle Pipes\u003c\/p\u003e\u003cp\u003eBuilt with integrated heat shielding to protect surrounding components.\u003c\/p\u003e\u003cp\u003eMaintains durability under extreme temperatures while improving exhaust flow.\u003c\/p\u003e\u003cp\u003eFree Flow F1 Race Headers\u003c\/p\u003e\u003cp\u003eEqual-length T304 stainless design, tuned for sharper pitch and higher-frequency tones.\u003c\/p\u003e\u003cp\u003eUnlocks the raw, motorsport-inspired wail similar to the 981 GT4 and GT3 engines.\u003c\/p\u003e\u003cp\u003eOEM Valve Integration\u003c\/p\u003e\u003cp\u003eFully compatible with Porsche’s PSE button via factory vacuum lines.\u003c\/p\u003e\u003cp\u003eOperates seamlessly:\u003c\/p\u003e\u003cp\u003eValves Open: Maximum flow, aggressive tone, exotic high-pitch sound.\u003c\/p\u003e\u003cp\u003eValves Closed: Routed through quad-chamber mufflers for significantly reduced volume, ideal for long drives or discreet use.\u003c\/p\u003e\u003cp\u003eOptional standalone controller included for independent valve control.\u003c\/p\u003e\u003cp\u003eWhy Upgrade?\u003c\/p\u003e\u003cp\u003eFrom the factory, the 718 GT4 and Spyder sound muted and flat. Our system transforms the experience, pulling inspiration from Porsche’s greatest engines to create a soundtrack worthy of the chassis.\u003c\/p\u003e\u003cp\u003eAggressive \u0026amp; Emotional: High-pitched notes reminiscent of a GT3.\u003c\/p\u003e\u003cp\u003eDaily Driveable: Docile when valves are closed, aggressive when open.\u003c\/p\u003e\u003cp\u003ePerformance-Oriented: Optimized flow for sharper throttle response and improved tone.\u003c\/p\u003e\u003cp\u003eTechnical Highlights\u003c\/p\u003e\u003cp\u003eWeight Savings: 34.8 lbs lighter than stock.\u003c\/p\u003e\u003cp\u003ePrecision TIG Welding: Hand-built for strength and beauty.\u003c\/p\u003e\u003cp\u003eReversible Design: 100% bolt-on, return to stock anytime.\u003c\/p\u003e\u003cp\u003eOEM Valve Control: No compromises—factory operation retained.\u003c\/p\u003e\u003cp\u003eFitment\u003c\/p\u003e\u003cp\u003e2020+ Porsche 718 Cayman GT4\u003c\/p\u003e\u003cp\u003e2020+ Porsche 718 Boxster Spyder\u003c\/p\u003e\u003cp\u003e2020+ Porsche 718 GTS (4.0)\u003c\/p\u003e\u003cp\u003e⚠️ Note on Bracket Design:\u003c\/p\u003e\u003cp\u003eEarly 2020 GT4\/Spyder models (built before February 2020) use different exhaust brackets than later models. Please check your car’s bracket style before ordering. For reference please see the this photo.\u003c\/p\u003e\u003ch3\u003eManufacturer installation and product references\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/cdn11.bigcommerce.com\/s-fh9wsjv2\/product_images\/uploaded_images\/oem-718-gt4-exhaust-hanger-edit-v2.jpg\" target=\"_blank\" rel=\"noopener\"\u003eManufacturer reference 1\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"Valvetronic Designs","offers":[{"title":"Valved Sport Exhaust System (Titanium)","offer_id":55671421894975,"sku":"POR.718.GT4.VSES.TI","price":5460.77,"currency_code":"CAD","in_stock":false},{"title":"'+ Free Flow Over Axle Pipes","offer_id":55671421927743,"sku":"POR.718.GT4.VSES.FF.TI","price":6300.89,"currency_code":"CAD","in_stock":false},{"title":"'+ Free Flow Over Axle Pipes + F1 Race Headers","offer_id":55671421960511,"sku":"POR.718.GT4.VSES.FFH.TI","price":9101.29,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/1348\/3839\/files\/valvetronic-7698211045412-1.jpg?v=1789847041","url":"https:\/\/foreignautomotive.ca\/products\/valvetronic-designs-porsche-781-gt4-boxter-spyder-valved-sport-exhaust-system","provider":"Foreign Automotive","version":"1.0","type":"link"}