{"product_id":"kth-stage-1-upgrade-mercedes-gls-63-s-amg-m177","title":"KTH Stage 1 Upgrade: Mercedes GLS63 S AMG (M177) ","description":"\u003c!-- ===================== SEO HEAD ===================== --\u003e\n\u003cp\u003e\u003c\/p\u003e\n\n\u003c!-- ===================== PRODUCT CONTENT ===================== --\u003e\n\u003cstyle\u003e\n  .kth-wrap{\n    --blue:#0b245b; --text:#111; --muted:#6b7280; --border:#e5e7eb;\n    font-family:\"Inter\",system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;\n    color:var(--text); line-height:1.6; max-width:900px; margin:0 auto; padding:2rem 1rem;\n  }\n  .kth-wrap h1{font-size:2rem;font-weight:700;color:var(--blue);margin-bottom:.5rem}\n  .kth-wrap h2{font-size:1.2rem;font-weight:600;color:var(--blue);margin-top:2rem;margin-bottom:.5rem}\n  .kth-lead{color:var(--muted);margin-bottom:1.5rem}\n  .kth-card{border:1px solid var(--border);border-radius:10px;padding:1rem 1.25rem;margin-top:.5rem}\n  .kth-list{margin:0;padding-left:1.25rem}\n  .kth-list li{margin-bottom:.35rem}\n  .kth-muted{color:var(--muted);margin-top:1rem;font-size:.9rem}\n  h2 {font-size: 32px !important;}\nh3 {font-size: 26px !important;}\n\n\u003c\/style\u003e\n\u003carticle class=\"kth-wrap\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Product\"\u003e\u003cheader\u003e\n\u003ch2 itemprop=\"name\"\u003e KTH Stage 1 – 680\u003cbr\u003e Mercedes-AMG GLS 63 S\u003c\/h2\u003e\n\n \u003cp class=\"kth-lead\"\u003ePerformance optimization for the AMG 4.0 V8 Biturbo – harmoniously tuned, confident in everyday use and noticeably more powerful in every driving situation.\u003c\/p\u003e\n\n\u003c\/header\u003e\n\u003csection\u003e\n\u003ch2\u003e Description\u003c\/h2\u003e\n\n\u003cp itemprop=\"description\"\u003e The \u003cstrong\u003eKTH Stage 1 – 680\u003c\/strong\u003e was developed for the \u003cstrong\u003eMercedes-AMG GLS 63 S\u003c\/strong\u003e with a 4.0-liter V8 biturbo engine. In addition to precise software optimization, this performance upgrade includes selected hardware components that improve responsiveness and enhance the overall system's durability. The goal is a significant increase in power while maintaining near-stock drivability and controlled characteristics.\u003c\/p\u003e\n\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003e Performance characteristics\u003c\/h2\u003e\n\n\u003cdiv class=\"kth-card\"\u003e\n\n\u003cul class=\"kth-list\"\u003e\n\n\u003cli\u003e Power output up to approximately \u003cstrong\u003e680 hp\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e Significantly increased torque\u003c\/li\u003e\n\n\u003cli\u003e Noticeably improved responsiveness\u003c\/li\u003e\n\n\u003cli\u003e Linear, consistent power delivery\u003c\/li\u003e\n\n\u003cli\u003e Superior acceleration across the entire rev range\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003e Tuning \u0026amp; drivability\u003c\/h2\u003e\n\n\u003cdiv class=\"kth-card\"\u003e\n\n\u003cul class=\"kth-list\"\u003e\n\n\u003cli\u003e Optimized boost pressure and map tuning\u003c\/li\u003e\n\n\u003cli\u003e Smooth throttle response without jerking\u003c\/li\u003e\n\n\u003cli\u003e Standard-like running characteristics despite increased performance\u003c\/li\u003e\n\n\u003cli\u003e High suitability for everyday use\u003c\/li\u003e\n\n \u003cli\u003eOEM-like overall vehicle behavior\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003e Installed components \u0026amp; technology\u003c\/h2\u003e\n\n\u003cdiv class=\"kth-card\"\u003e\n\n\u003cul class=\"kth-list\"\u003e\n\n\u003cli\u003e Individual KTH software optimization\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eBMC sports air filter\u003c\/strong\u003e for optimizing airflow\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eBlackBoost FTA Diverter\u003c\/strong\u003e for stable and precise boost pressure control\u003c\/li\u003e\n\n\u003cli\u003e Improved turbocharger response\u003c\/li\u003e\n\n\u003cli\u003e High thermal and mechanical stability\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003e Area of ​​application\u003c\/h2\u003e\n\n\u003cp class=\"kth-muted\"\u003e Ideal for drivers seeking a noticeable increase in performance with high-quality drivability and controlled dynamics – perfectly suited for sporty everyday driving as well as ambitious road vehicles.\u003c\/p\u003e\n\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003e Notes\u003c\/h2\u003e\n\n\u003cp class=\"kth-muted\"\u003e \u003cstrong\u003eRacing equipment\u003c\/strong\u003e – ​​not approved for use on public roads.\u003cbr\u003e Exclusively intended for motorsport and export vehicles. Not approved for use on public roads. Tuning is customized to each individual vehicle and its installed hardware.\u003c\/p\u003e\n\n\u003c\/section\u003e\n\u003cp class=\"kth-muted\"\u003e © Kraftfahrzeug Technik Hannover (KTH)\u003c\/p\u003e\n\n\u003c\/article\u003e","brand":"KTH Onlineshop","offers":[{"title":"Default Title","offer_id":56937857581381,"sku":"KTHS1M177GLS63","price":1899.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1008\/7786\/1189\/files\/KTHStageX.png?v=1769445568","url":"https:\/\/kthshop.de\/en\/products\/kth-stage-1-upgrade-mercedes-gls-63-s-amg-m177","provider":"KTH Shop","version":"1.0","type":"link"}