{"product_id":"porsche-718-cayman-gt4-gts-spyder-4-0l-valved-sport-exhaust-system-1","title":"Porsche 718 Cayman GT4 \/ GTS \/ Spyder 4.0L Valved Sport Exhaust System","description":"\u003cstyle type=\"text\/css\"\u003e#detail_decorate_root .magic-0{width:750px}#detail_decorate_root .magic-1{overflow:hidden;width:750px;height:375.46816479400746px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-2{margin-top:0;margin-left:0;width:750px;height:375.46816479400746px}#detail_decorate_root .magic-3{overflow:hidden;width:750px;height:61.708860759493675px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-4{margin-top:0;margin-left:0;width:750.0000000000001px;height:61.708860759493675px}#detail_decorate_root .magic-5{margin-bottom:10px;line-height:0}#detail_decorate_root .magic-6{margin-bottom:0}#detail_decorate_root .magic-7{position:relative;width:100%}#detail_decorate_root 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.magic-32{width:750px;border-collapse:collapse}#detail_decorate_root .magic-33{min-height:28px;padding:5px 10px;width:259px;min-height:28px;box-sizing:content-box}#detail_decorate_root .magic-34{min-height:28px;padding:5px 10px;width:442px;min-height:28px;box-sizing:content-box}\n\u003c\/style\u003e\n\u003cdiv data-magic-global=\"%7B%22bizId%22%3A2212020367595%2C%22pageId%22%3A21487099687%2C%22siteId%22%3A10002860043%7D\"\u003e\u003c\/div\u003e\n\u003cdiv data-magic-global=\"%7B%22bizId%22%3A2212020367595%2C%22pageId%22%3A21487099687%2C%22siteId%22%3A10002860043%7D\" id=\"detail_decorate_root\"\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv id=\"detail_decorate_root\" data-magic-global=\"%7B%22bizId%22%3A2212020367595%2C%22pageId%22%3A21395351289%2C%22siteId%22%3A10002860043%7D\"\u003e\n\u003cdiv data-magic-global=\"%7B%22bizId%22%3A2212020367595%2C%22pageId%22%3A21300197335%2C%22siteId%22%3A10002860043%7D\" id=\"detail_decorate_root\"\u003e\n\u003cdiv data-sae=\"\" data-processed=\"true\" data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"c\" data-sfc-cp=\"\" data-animation-nesting=\"\" role=\"heading\" class=\"otQkpb\"\u003e\n\u003ch2\u003eUnleash the True 8,000 RPM Flat-Six Scream — CEES Porsche 718 4.0L Valved Sport Exhaust System\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe width=\"315\" height=\"560\" src=\"https:\/\/www.youtube.com\/embed\/CnchZS3-vFg\" title=\"Porsche 718 Cayman GT4 \/ GTS \/ Spyder 4.0L Valved Sport Exhaust Sound\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eReclaim the raw, race-bred soundtrack of your naturally aspirated Porsche with the \u003cstrong\u003eCEES Valved Sport Exhaust System\u003c\/strong\u003e, precision-engineered for the \u003cstrong\u003ePorsche 718 Cayman GT4, GTS 4.0, Boxster GTS 4.0, and 718 Spyder (4.0L NA Flat-6)\u003c\/strong\u003e. Designed to overcome the muted factory sound profile caused by restrictive silencer baffling, this system merges acoustic crossover engineering with high-performance valvetronic control—delivering an intoxicating, high-frequency GT3-inspired crescendo all the way to the 8,000 RPM redline while maintaining refined, drone-free touring comfort when cruising.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/62FxkfCjBwA\" title=\"Porsche 718 Cayman GT4 \/ GTS \/ Spyder 4.0L Valved Sport Exhaust System\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 data-processed=\"true\" data-complete=\"true\" data-sfc-root=\"c\" role=\"heading\" class=\"otQkpb\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0582\/7539\/7747\/files\/TIPS.webp?v=1762582937\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e🚀 Engineering Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDual-Mode Valvetronic Acoustic Control:\u003c\/b\u003e High-temperature vacuum valves allow seamless switching between stealth cruising mode (valves closed) and unrestrained, high-decibel Flat-6 motorsport scream (valves open), fully compatible with OEM PSE controls or included wireless remotes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAcoustically Tuned Crossover Geometry:\u003c\/b\u003e Precision internal flow path merges exhaust pulses from opposing cylinder banks, eliminating the muddy resonance and cabin drone common in stock setups while amplifying the high-pitched harmonic wail at high RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRear Axle Weight Reduction:\u003c\/b\u003e Available in ultra-lightweight Grade 5 Titanium (shedding up to 45% of weight directly off the rear overhang) or heavy-duty, heat-resistant T304 Stainless Steel for proven long-term durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3D Scan Precision Fitment:\u003c\/b\u003e Engineered from high-definition 3D laser chassis scans to guarantee 100% direct bolt-on alignment with factory over-axle pipes (OAP), OEM hangers, and factory rear diffuser tips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📊 Technical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; height: 351.688px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 78.375px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 78.375px;\"\u003e\u003cb\u003eFitment\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 78.375px;\"\u003e• 2019–2024 Porsche 718 Cayman GT4 \u003cbr\u003e• 2020–2024+ Porsche 718 Cayman GTS 4.0 \u003cbr\u003e• 2020–2024+ Porsche 718 Boxster GTS 4.0\u003cbr\u003e• 2019–2024 Porsche 718 Spyder \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 19.5938px;\"\u003e\u003cb\u003eEngine\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 19.5938px;\"\u003e4.0L Naturally Aspirated Boxer-6 (Porsche 9A2 Evo, 8,000 RPM Redline)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 57.7812px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 57.7812px;\"\u003e\u003cb\u003eAvailable Configurations\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 57.7812px;\"\u003e\n\u003cp\u003e• \u003cb\u003eSS304 Catback Exhaust:\u003c\/b\u003e T304 stainless steel valved rear sport exhaust system\u003cbr\u003e• \u003cb\u003eTitanium Catback Exhaust:\u003c\/b\u003e  Grade 5 titanium valved rear sport exhaust system\u003c\/p\u003e\n\u003cp\u003e• \u003cb\u003eFull Exhaust:\u003c\/b\u003e T304 stainless steel catback and Catless Downpipe exhaust system\u003cbr\u003e• \u003cmeta charset=\"utf-8\"\u003e\u003cb\u003eFull \u003c\/b\u003e\u003cb\u003eExhaust:\u003c\/b\u003e  Grade 5 titanium catback and High-Flow Catted 100 cell\/200cell\/300cell downpipe exhaust system\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 39.1875px;\"\u003e\u003cb\u003eValve System\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 39.1875px;\"\u003eDual high-temperature vacuum valves (compatible with factory PSE vacuum lines or included standalone controller)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 39.1875px;\"\u003e\u003cb\u003eMaterial Options\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 39.1875px;\"\u003e• Premium T304 Stainless Steel\u003cbr\u003e• Ultra-Lightweight Grade 5 Titanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 39.1875px;\"\u003e\u003cb\u003eInstallation\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 39.1875px;\"\u003e100% bolt-on installation allows a return to stock at any time. (Reuses factory outlets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 19.5938px;\"\u003e\u003cb\u003ePlace of Origin\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 19.5938px;\"\u003eGuangdong, China (Direct Manufacturer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 19.5938px;\"\u003e\u003cb\u003eWarranty\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 19.5938px;\"\u003e1 Year Limited Warranty against manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 19.9746%; height: 39.1875px;\"\u003e\u003cb\u003eWhat's Included\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.7032%; height: 39.1875px;\"\u003eValved rear muffler section, connecting pipes, vacuum valve actuation hardware, heavy-duty exhaust clamps, and precision mounting hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003cp\u003e\u003ca style=\"display: inline-block; background-color: #25d366; color: #ffffff; padding: 12px 24px; border-radius: 6px; text-decoration: none; font-weight: bold; font-size: 16px;\" rel=\"noopener noreferrer\" href=\"https:\/\/wa.me\/8615626172519\" target=\"_blank\"\u003e✨ Bespoke Your Build — Chat with Our Specialists on WhatsApp\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhatsApp:\u003c\/b\u003e +86 15626172519\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEmail:\u003c\/b\u003e cees-exhaust@qq.com\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📦 Production \u0026amp; Shipping\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e🛠️ Production Time:\u003c\/b\u003e Built to order in \u003cb\u003e2–4 weeks\u003c\/b\u003e (in-stock options ship in 6–12 business days)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e🚚 Shipping:\u003c\/b\u003e Premium express via DHL \/ FedEx \/ UPS — estimated \u003cb\u003e7–15 business days\u003c\/b\u003e to your door\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e📦 Free shipping\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003e1. How does this exhaust improve the sound of the Porsche 718 4.0L?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe factory 718 4.0L exhaust is restricted by particulate filters and heavily muffled rear silencer chambers that silence the flat-six engine. The CEES Valved Sport Exhaust replaces the heavy rear muffler box with tuned acoustic channels and a crossover merging section. With valves open, it uninhibitedly projects the high-RPM GT3-like scream that Porsche enthusiasts crave.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e2. Can I control the valves with the factory Porsche Sport Exhaust (PSE) button?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The vacuum valves connect directly to the factory vacuum lines, allowing full control through the OEM PSE exhaust button on your center console, or via the optional standalone controller kit.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e3. What is the difference between SUS304 Stainless Steel and Grade 5 Titanium?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eSUS304 Stainless Steel offers bulletproof durability, excellent corrosion resistance, and a rich, deep acoustic tone. Grade 5 Titanium reduces weight by approximately 45% off the very rear of the car—improving vehicle handling dynamics—and produces an exotic, crisper metallic acoustic resonance under hard acceleration.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e4. Is any cutting or welding required?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eNo. 100% bolt-on installation allows a return to stock at any time. The system mounts directly to factory hangers and connects to the factory over-axle pipes (OAP).\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e5. Are you a direct manufacturer?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eYes — CEES Exhaust is a \u003cb\u003edirect manufacturer\u003c\/b\u003e based in Guangdong, China. We build our exhaust systems in-house with strict quality control, providing enthusiasts with race-proven engineering at factory-direct pricing.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0582\/7539\/7747\/files\/e8d359b7ce873530e19a12cff70af115.jpg?v=1783407649\" alt=\"CEES Exhaust Direct Manufacturer Guangdong\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ceesexhaust","offers":[{"title":"SS304 Catback(in stock)","offer_id":44927753617523,"sku":null,"price":1330.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Catback(in stock)","offer_id":44927753650291,"sku":null,"price":2050.0,"currency_code":"USD","in_stock":true},{"title":"SS304 Full Exhaust Catless Downpipe","offer_id":44927753683059,"sku":null,"price":1780.0,"currency_code":"USD","in_stock":true},{"title":"SS304 Full Exhaust High-Flow Catted (100 cell)","offer_id":66853510119539,"sku":null,"price":1990.0,"currency_code":"USD","in_stock":true},{"title":"SS304 Full Exhaust High-Flow Catted (200 cell)","offer_id":66853510152307,"sku":null,"price":1990.0,"currency_code":"USD","in_stock":true},{"title":"SS304 Full Exhaust High-Flow Catted (300 cell)","offer_id":66853510185075,"sku":null,"price":1990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/7539\/7747\/files\/porsche_718_exhaust_upgrade.jpg?v=1791878839","url":"https:\/\/cees-exhaust.com\/de\/products\/porsche-718-cayman-gt4-gts-spyder-4-0l-valved-sport-exhaust-system-1","provider":"ceesexhaust","version":"1.0","type":"link"}