{"id":938,"date":"2025-05-26T21:47:41","date_gmt":"2025-05-26T13:47:41","guid":{"rendered":"http:\/\/www.yuspeed.com.cn\/?post_type=product&p=938"},"modified":"2025-05-26T21:47:41","modified_gmt":"2025-05-26T13:47:41","slug":"porsche-991-gt3-exhaust-%e6%8e%92%e6%b0%94","status":"publish","type":"product","link":"http:\/\/www.yuspeed.com.cn\/index.php\/product\/porsche-991-gt3-exhaust-%e6%8e%92%e6%b0%94\/","title":{"rendered":"PORSCHE 991 GT3 Exhaust \u6392\u6c14"},"content":{"rendered":"
\n

PORSCHE 991 GT3 Exhaust<\/h1>\n<\/div>\n

Capitalizing on a formidable heritage of race bred 911’s. Upwards of 475 hp, and a 9000rpm redline, We wanted to make the exhaust scream like a racecar should! Applying our usual formula, F1 grade Inconel 625, tuned cross sections, and perfect X pipe geometry, we were able to craft an exhaust that not only has the perfect sound, but is lightweight, durable, and performs to the highest expectations.<\/p>\n

The Sound<\/h4>\n

Starting at the manifolds, replacing the stock cats for our 100 cell, or long tube catless Inconel headers opens up the sound significantly. The gases are then passed through one of 2 channels. On valve closed, the gases pass through our harmonically tuned, and internally ceramic insulated wing silencers to remove unwanted drone during highway cruising, and into the center muffler, and finally our trademark 1D CLR x pipe, this setup keeps the car very civilised when you want it to be.
\nOn valve open The wing and center silencers are completely bypassed, allowing the gasses to pass freely through the exhaust system. The geometry of the Kline 1D CLR X pipe raises the pitch of the exhaust significantly into a raucous, yet beautiful, incindiary scream, without causing any restriction to the gas transit. The material Inconel 625 also has a unique sound, further enhancing the natural charachteristic sound of the kline system. The sidewall is very thin, and resonates to produce an even higher pitched scream at high revs.<\/p>\n

Performance<\/h4>\n

The largest performance gain comes from replacing the catalysts in the stock headers. The Kline headers and full system are designed to work in conjunction with eachother for optimum performance and sound. The Kline system and headers are available in 2 options, 100 cpsi catalysts producing a largest gain of 18 hp and 27nm,or decat long tube headers producing a largest gain of 24hp and 35nm.<\/p>\n","protected":false},"excerpt":{"rendered":"

THE SPECIFICS<\/h4>\n

Materials<\/h5>\n

Inconel 625, Manifolds decat 2.3kg each,
\nwing silencers 4.6kg each,
\ncenter silencer with tips 5.9kg each.
\nTotal weight manifold back, 15.1kg,
\nTotal weight Inc manifolds 19.7kg
\n19.2kg weight saving<\/p>\n

304 grade stainless,
\nManifolds 4kg each,
\nwing silencers 8.5kg each,
\ncenter silencer with tips 10.5kg
\nTotal weight manifold back 27.5kg
\nTotal weight Inc manifolds 35.5<\/p>\n

Cross Sections<\/h5>\n

All cross section have been selected for a balance of peak torque and power<\/p>\n

Manifolds
\nPrimaries 51mm
\nSecondaries 70mm<\/p>\n

Rear section
\nvalve open, tapered 70mm into 63.5mm Xpipe
\nvalve closed, 57mm into wing silencers<\/p>\n

Tips
\nchoice of 89 mm or 1o1mm, double walled inconel
\nor Carbon fiber<\/p>\n","protected":false},"featured_media":940,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[53],"product_cat":[55],"product_tag":[127,121,125,119],"class_list":["post-938","product","type-product","status-publish","has-post-thumbnail","product_brand-kline","product_cat-kline","product_tag-exhaust-zh","product_tag-kline-zh","product_tag-porsche","product_tag-119","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nPORSCHE 991 GT3 Exhaust \u6392\u6c14 - \u9a6d\u901f\u79d1\u6280<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.yuspeed.com.cn\/index.php\/product\/porsche-991-gt3-exhaust-\u6392\u6c14\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PORSCHE 991 GT3 Exhaust \u6392\u6c14 - \u9a6d\u901f\u79d1\u6280\" \/>\n<meta property=\"og:description\" content=\"THE SPECIFICS Materials Inconel 625, Manifolds decat 2.3kg each, wing silencers 4.6kg each, center silencer with tips 5.9kg each. Total weight manifold back, 15.1kg, Total weight Inc manifolds 19.7kg 19.2kg weight saving 304 grade stainless, Manifolds 4kg each, wing silencers 8.5kg each, center silencer with tips 10.5kg Total weight manifold back 27.5kg Total weight Inc manifolds 35.5 Cross Sections All cross section have been selected for a balance of peak torque and power Manifolds Primaries 51mm Secondaries 70mm Rear section valve open, tapered 70mm into 63.5mm Xpipe valve closed, 57mm into wing silencers Tips choice of 89 mm or 1o1mm, double walled inconel or Carbon fiber\" \/>\n<meta property=\"og:url\" content=\"http:\/\/www.yuspeed.com.cn\/index.php\/product\/porsche-991-gt3-exhaust-\u6392\u6c14\/\" \/>\n<meta property=\"og:site_name\" content=\"\u9a6d\u901f\u79d1\u6280\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.yuspeed.com.cn\/wp-content\/uploads\/2025\/05\/Porsche-991-GT3-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"853\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\/\/www.yuspeed.com.cn\/index.php\/product\/porsche-991-gt3-exhaust-%e6%8e%92%e6%b0%94\/\",\"url\":\"http:\/\/www.yuspeed.com.cn\/index.php\/product\/porsche-991-gt3-exhaust-%e6%8e%92%e6%b0%94\/\",\"name\":\"PORSCHE 991 GT3 Exhaust \u6392\u6c14 - 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